/src/openssl36/providers/implementations/ciphers/cipher_chacha20_poly1305.c

Source
/*
 * Copyright 2019-2025 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the Apache License 2.0 (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */
/* clang-format off */

/* clang-format on */

/* Dispatch functions for chacha20_poly1305 cipher */

#include <string.h>
#include <openssl/proverr.h>
#include "cipher_chacha20_poly1305.h"
#include "prov/implementations.h"
#include "prov/providercommon.h"

#define CHACHA20_POLY1305_KEYLEN CHACHA_KEY_SIZE
#define CHACHA20_POLY1305_BLKLEN 1
#define CHACHA20_POLY1305_MAX_IVLEN 12
#define CHACHA20_POLY1305_MODE 0
#define CHACHA20_POLY1305_FLAGS (PROV_CIPHER_FLAG_AEAD \
    | PROV_CIPHER_FLAG_CUSTOM_IV)

static OSSL_FUNC_cipher_newctx_fn chacha20_poly1305_newctx;
static OSSL_FUNC_cipher_freectx_fn chacha20_poly1305_freectx;
static OSSL_FUNC_cipher_dupctx_fn chacha20_poly1305_dupctx;
static OSSL_FUNC_cipher_encrypt_init_fn chacha20_poly1305_einit;
static OSSL_FUNC_cipher_decrypt_init_fn chacha20_poly1305_dinit;
static OSSL_FUNC_cipher_get_params_fn chacha20_poly1305_get_params;
static OSSL_FUNC_cipher_get_ctx_params_fn chacha20_poly1305_get_ctx_params;
static OSSL_FUNC_cipher_set_ctx_params_fn chacha20_poly1305_set_ctx_params;
static OSSL_FUNC_cipher_cipher_fn chacha20_poly1305_cipher;
static OSSL_FUNC_cipher_final_fn chacha20_poly1305_final;
static OSSL_FUNC_cipher_gettable_ctx_params_fn chacha20_poly1305_gettable_ctx_params;
static OSSL_FUNC_cipher_settable_ctx_params_fn chacha20_poly1305_settable_ctx_params;
#define chacha20_poly1305_gettable_params ossl_cipher_generic_gettable_params
#define chacha20_poly1305_update chacha20_poly1305_cipher

static void *chacha20_poly1305_newctx(void *provctx)
{
    PROV_CHACHA20_POLY1305_CTX *ctx;

    if (!ossl_prov_is_running())
        return NULL;

    ctx = OPENSSL_zalloc(sizeof(*ctx));
    if (ctx != NULL) {
        ossl_cipher_generic_initkey(&ctx->base, CHACHA20_POLY1305_KEYLEN * 8,
            CHACHA20_POLY1305_BLKLEN * 8,
            CHACHA20_POLY1305_IVLEN * 8,
            CHACHA20_POLY1305_MODE,
            CHACHA20_POLY1305_FLAGS,
            ossl_prov_cipher_hw_chacha20_poly1305(
                CHACHA20_POLY1305_KEYLEN * 8),
            NULL);
        ctx->tls_payload_length = NO_TLS_PAYLOAD_LENGTH;
        ossl_chacha20_initctx(&ctx->chacha);
    }
    return ctx;
}

static void *chacha20_poly1305_dupctx(void *provctx)
{
    PROV_CHACHA20_POLY1305_CTX *ctx = provctx;
    PROV_CHACHA20_POLY1305_CTX *dctx = NULL;

    if (ctx == NULL)
        return NULL;
    dctx = OPENSSL_memdup(ctx, sizeof(*ctx));
    if (dctx != NULL && dctx->base.tlsmac != NULL && dctx->base.alloced) {
        dctx->base.tlsmac = OPENSSL_memdup(dctx->base.tlsmac,
            dctx->base.tlsmacsize);
        if (dctx->base.tlsmac == NULL) {
            OPENSSL_free(dctx);
            dctx = NULL;
        }
    }
    return dctx;
}

static void chacha20_poly1305_freectx(void *vctx)
{
    PROV_CHACHA20_POLY1305_CTX *ctx = (PROV_CHACHA20_POLY1305_CTX *)vctx;

    if (ctx != NULL) {
        ossl_cipher_generic_reset_ctx((PROV_CIPHER_CTX *)vctx);
        OPENSSL_clear_free(ctx, sizeof(*ctx));
    }
}

static int chacha20_poly1305_get_params(OSSL_PARAM params[])
{
    return ossl_cipher_generic_get_params(params, 0, CHACHA20_POLY1305_FLAGS,
        CHACHA20_POLY1305_KEYLEN * 8,
        CHACHA20_POLY1305_BLKLEN * 8,
        CHACHA20_POLY1305_IVLEN * 8);
}

/* clang-format off */
/* Machine generated by util/perl/OpenSSL/paramnames.pm */
#ifndef chacha20_poly1305_get_ctx_params_list
static const OSSL_PARAM chacha20_poly1305_get_ctx_params_list[] = {
    OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_KEYLEN, NULL),
    OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_IVLEN, NULL),
    OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_AEAD_TAGLEN, NULL),
    OSSL_PARAM_octet_string(OSSL_CIPHER_PARAM_AEAD_TAG, NULL, 0),
    OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_AEAD_TLS1_AAD_PAD, NULL),
    OSSL_PARAM_END
};
#endif

#ifndef chacha20_poly1305_get_ctx_params_st
struct chacha20_poly1305_get_ctx_params_st {
    OSSL_PARAM *ivlen;
    OSSL_PARAM *keylen;
    OSSL_PARAM *pad;
    OSSL_PARAM *tag;
    OSSL_PARAM *taglen;
};
#endif

#ifndef chacha20_poly1305_get_ctx_params_decoder
static int chacha20_poly1305_get_ctx_params_decoder
    (const OSSL_PARAM *p, struct chacha20_poly1305_get_ctx_params_st *r)
{
    const char *s;

    memset(r, 0, sizeof(*r));
    if (p != NULL)
        for (; (s = p->key) != NULL; p++)
            switch(s[0]) {
            default:
                break;
            case 'i':
                if (ossl_likely(strcmp("vlen", s + 1) == 0)) {
                    /* OSSL_CIPHER_PARAM_IVLEN */
                    if (ossl_unlikely(r->ivlen != NULL)) {
                        ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
                                       "param %s is repeated", s);
                        return 0;
                    }
                    r->ivlen = (OSSL_PARAM *)p;
                }
                break;
            case 'k':
                if (ossl_likely(strcmp("eylen", s + 1) == 0)) {
                    /* OSSL_CIPHER_PARAM_KEYLEN */
                    if (ossl_unlikely(r->keylen != NULL)) {
                        ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
                                       "param %s is repeated", s);
                        return 0;
                    }
                    r->keylen = (OSSL_PARAM *)p;
                }
                break;
            case 't':
                switch(s[1]) {
                default:
                    break;
                case 'a':
                    switch(s[2]) {
                    default:
                        break;
                    case 'g':
                        switch(s[3]) {
                        default:
                            break;
                        case 'l':
                            if (ossl_likely(strcmp("en", s + 4) == 0)) {
                                /* OSSL_CIPHER_PARAM_AEAD_TAGLEN */
                                if (ossl_unlikely(r->taglen != NULL)) {
                                    ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
                                                   "param %s is repeated", s);
                                    return 0;
                                }
                                r->taglen = (OSSL_PARAM *)p;
                            }
                            break;
                        case '\0':
                            if (ossl_unlikely(r->tag != NULL)) {
                                ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
                                               "param %s is repeated", s);
                                return 0;
                            }
                            r->tag = (OSSL_PARAM *)p;
                        }
                    }
                    break;
                case 'l':
                    if (ossl_likely(strcmp("saadpad", s + 2) == 0)) {
                        /* OSSL_CIPHER_PARAM_AEAD_TLS1_AAD_PAD */
                        if (ossl_unlikely(r->pad != NULL)) {
                            ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
                                           "param %s is repeated", s);
                            return 0;
                        }
                        r->pad = (OSSL_PARAM *)p;
                    }
                }
            }
    return 1;
}
#endif
/* End of machine generated */
/* clang-format on */

static int chacha20_poly1305_get_ctx_params(void *vctx, OSSL_PARAM params[])
{
    PROV_CHACHA20_POLY1305_CTX *ctx = (PROV_CHACHA20_POLY1305_CTX *)vctx;
    struct chacha20_poly1305_get_ctx_params_st p;

    if (ctx == NULL || !chacha20_poly1305_get_ctx_params_decoder(params, &p))
        return 0;

    if (p.ivlen != NULL
        && !OSSL_PARAM_set_size_t(p.ivlen, CHACHA20_POLY1305_IVLEN)) {
        ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
        return 0;
    }

    if (p.keylen != NULL
        && !OSSL_PARAM_set_size_t(p.keylen, CHACHA20_POLY1305_KEYLEN)) {
        ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
        return 0;
    }

    if (p.taglen != NULL
        && !OSSL_PARAM_set_size_t(p.taglen, ctx->tag_len)) {
        ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
        return 0;
    }

    if (p.pad != NULL
        && !OSSL_PARAM_set_size_t(p.pad, ctx->tls_aad_pad_sz)) {
        ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
        return 0;
    }

    if (p.tag != NULL) {
        if (p.tag->data_type != OSSL_PARAM_OCTET_STRING) {
            ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
            return 0;
        }
        if (!ctx->base.enc) {
            ERR_raise(ERR_LIB_PROV, PROV_R_TAG_NOT_SET);
            return 0;
        }
        if (p.tag->data_size == 0 || p.tag->data_size > POLY1305_BLOCK_SIZE) {
            ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_TAG_LENGTH);
            return 0;
        }
        memcpy(p.tag->data, ctx->tag, p.tag->data_size);
    }
    return 1;
}

static const OSSL_PARAM *chacha20_poly1305_gettable_ctx_params(ossl_unused void *cctx, ossl_unused void *provctx)
{
    return chacha20_poly1305_get_ctx_params_list;
}

/* clang-format off */
/* Machine generated by util/perl/OpenSSL/paramnames.pm */
#ifndef chacha20_poly1305_set_ctx_params_list
static const OSSL_PARAM chacha20_poly1305_set_ctx_params_list[] = {
    OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_KEYLEN, NULL),
    OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_IVLEN, NULL),
    OSSL_PARAM_octet_string(OSSL_CIPHER_PARAM_AEAD_TAG, NULL, 0),
    OSSL_PARAM_octet_string(OSSL_CIPHER_PARAM_AEAD_TLS1_AAD, NULL, 0),
    OSSL_PARAM_octet_string(OSSL_CIPHER_PARAM_AEAD_TLS1_IV_FIXED, NULL, 0),
    OSSL_PARAM_END
};
#endif

#ifndef chacha20_poly1305_set_ctx_params_st
struct chacha20_poly1305_set_ctx_params_st {
    OSSL_PARAM *aad;
    OSSL_PARAM *fixed;
    OSSL_PARAM *ivlen;
    OSSL_PARAM *keylen;
    OSSL_PARAM *tag;
};
#endif

#ifndef chacha20_poly1305_set_ctx_params_decoder
static int chacha20_poly1305_set_ctx_params_decoder
    (const OSSL_PARAM *p, struct chacha20_poly1305_set_ctx_params_st *r)
{
    const char *s;

    memset(r, 0, sizeof(*r));
    if (p != NULL)
        for (; (s = p->key) != NULL; p++)
            switch(s[0]) {
            default:
                break;
            case 'i':
                if (ossl_likely(strcmp("vlen", s + 1) == 0)) {
                    /* OSSL_CIPHER_PARAM_IVLEN */
                    if (ossl_unlikely(r->ivlen != NULL)) {
                        ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
                                       "param %s is repeated", s);
                        return 0;
                    }
                    r->ivlen = (OSSL_PARAM *)p;
                }
                break;
            case 'k':
                if (ossl_likely(strcmp("eylen", s + 1) == 0)) {
                    /* OSSL_CIPHER_PARAM_KEYLEN */
                    if (ossl_unlikely(r->keylen != NULL)) {
                        ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
                                       "param %s is repeated", s);
                        return 0;
                    }
                    r->keylen = (OSSL_PARAM *)p;
                }
                break;
            case 't':
                switch(s[1]) {
                default:
                    break;
                case 'a':
                    if (ossl_likely(strcmp("g", s + 2) == 0)) {
                        /* OSSL_CIPHER_PARAM_AEAD_TAG */
                        if (ossl_unlikely(r->tag != NULL)) {
                            ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
                                           "param %s is repeated", s);
                            return 0;
                        }
                        r->tag = (OSSL_PARAM *)p;
                    }
                    break;
                case 'l':
                    switch(s[2]) {
                    default:
                        break;
                    case 's':
                        switch(s[3]) {
                        default:
                            break;
                        case 'a':
                            if (ossl_likely(strcmp("ad", s + 4) == 0)) {
                                /* OSSL_CIPHER_PARAM_AEAD_TLS1_AAD */
                                if (ossl_unlikely(r->aad != NULL)) {
                                    ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
                                                   "param %s is repeated", s);
                                    return 0;
                                }
                                r->aad = (OSSL_PARAM *)p;
                            }
                            break;
                        case 'i':
                            if (ossl_likely(strcmp("vfixed", s + 4) == 0)) {
                                /* OSSL_CIPHER_PARAM_AEAD_TLS1_IV_FIXED */
                                if (ossl_unlikely(r->fixed != NULL)) {
                                    ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
                                                   "param %s is repeated", s);
                                    return 0;
                                }
                                r->fixed = (OSSL_PARAM *)p;
                            }
                        }
                    }
                }
            }
    return 1;
}
#endif
/* End of machine generated */
/* clang-format on */

static const OSSL_PARAM *chacha20_poly1305_settable_ctx_params(
    ossl_unused void *cctx, ossl_unused void *provctx)
{
    return chacha20_poly1305_set_ctx_params_list;
}

static int chacha20_poly1305_set_ctx_params(void *vctx,
    const OSSL_PARAM params[])
{
    size_t len;
    PROV_CHACHA20_POLY1305_CTX *ctx = (PROV_CHACHA20_POLY1305_CTX *)vctx;
    PROV_CIPHER_HW_CHACHA20_POLY1305 *hw = (PROV_CIPHER_HW_CHACHA20_POLY1305 *)ctx->base.hw;
    struct chacha20_poly1305_set_ctx_params_st p;

    if (!chacha20_poly1305_set_ctx_params_decoder(params, &p))
        return 0;

    if (p.keylen != NULL) {
        if (!OSSL_PARAM_get_size_t(p.keylen, &len)) {
            ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_GET_PARAMETER);
            return 0;
        }
        if (len != CHACHA20_POLY1305_KEYLEN) {
            ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_KEY_LENGTH);
            return 0;
        }
    }

    if (p.ivlen != NULL) {
        if (!OSSL_PARAM_get_size_t(p.ivlen, &len)) {
            ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_GET_PARAMETER);
            return 0;
        }
        if (len != CHACHA20_POLY1305_MAX_IVLEN) {
            ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_IV_LENGTH);
            return 0;
        }
    }

    if (p.tag != NULL) {
        if (p.tag->data_type != OSSL_PARAM_OCTET_STRING) {
            ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_GET_PARAMETER);
            return 0;
        }
        if (p.tag->data_size == 0 || p.tag->data_size > POLY1305_BLOCK_SIZE) {
            ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_TAG_LENGTH);
            return 0;
        }
        if (p.tag->data != NULL) {
            if (ctx->base.enc) {
                ERR_raise(ERR_LIB_PROV, PROV_R_TAG_NOT_NEEDED);
                return 0;
            }
            memcpy(ctx->tag, p.tag->data, p.tag->data_size);
        }
        ctx->tag_len = p.tag->data_size;
    }

    if (p.aad != NULL) {
        if (p.aad->data_type != OSSL_PARAM_OCTET_STRING) {
            ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_GET_PARAMETER);
            return 0;
        }
        len = hw->tls_init(&ctx->base, p.aad->data, p.aad->data_size);
        if (len == 0) {
            ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_DATA);
            return 0;
        }
        ctx->tls_aad_pad_sz = len;
    }

    if (p.fixed != NULL) {
        if (p.fixed->data_type != OSSL_PARAM_OCTET_STRING) {
            ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_GET_PARAMETER);
            return 0;
        }
        if (hw->tls_iv_set_fixed(&ctx->base, p.fixed->data,
                p.fixed->data_size)
            == 0) {
            ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_IV_LENGTH);
            return 0;
        }
    }
    return 1;
}

static int chacha20_poly1305_einit(void *vctx, const unsigned char *key,
    size_t keylen, const unsigned char *iv,
    size_t ivlen, const OSSL_PARAM params[])
{
    int ret;

    /* The generic function checks for ossl_prov_is_running() */
    ret = ossl_cipher_generic_einit(vctx, key, keylen, iv, ivlen, NULL);
    if (ret && iv != NULL) {
        PROV_CIPHER_CTX *ctx = (PROV_CIPHER_CTX *)vctx;
        PROV_CIPHER_HW_CHACHA20_POLY1305 *hw = (PROV_CIPHER_HW_CHACHA20_POLY1305 *)ctx->hw;

        hw->initiv(ctx);
    }
    if (ret && !chacha20_poly1305_set_ctx_params(vctx, params))
        ret = 0;
    return ret;
}

static int chacha20_poly1305_dinit(void *vctx, const unsigned char *key,
    size_t keylen, const unsigned char *iv,
    size_t ivlen, const OSSL_PARAM params[])
{
    int ret;

    /* The generic function checks for ossl_prov_is_running() */
    ret = ossl_cipher_generic_dinit(vctx, key, keylen, iv, ivlen, NULL);
    if (ret && iv != NULL) {
        PROV_CIPHER_CTX *ctx = (PROV_CIPHER_CTX *)vctx;
        PROV_CIPHER_HW_CHACHA20_POLY1305 *hw = (PROV_CIPHER_HW_CHACHA20_POLY1305 *)ctx->hw;

        hw->initiv(ctx);
    }
    if (ret && !chacha20_poly1305_set_ctx_params(vctx, params))
        ret = 0;
    return ret;
}

static int chacha20_poly1305_cipher(void *vctx, unsigned char *out,
    size_t *outl, size_t outsize,
    const unsigned char *in, size_t inl)
{
    PROV_CIPHER_CTX *ctx = (PROV_CIPHER_CTX *)vctx;
    PROV_CIPHER_HW_CHACHA20_POLY1305 *hw = (PROV_CIPHER_HW_CHACHA20_POLY1305 *)ctx->hw;

    if (!ossl_prov_is_running())
        return 0;

    if (inl == 0) {
        *outl = 0;
        return 1;
    }

    if (outsize < inl) {
        ERR_raise(ERR_LIB_PROV, PROV_R_OUTPUT_BUFFER_TOO_SMALL);
        return 0;
    }

    if (!hw->aead_cipher(ctx, out, outl, in, inl))
        return 0;

    return 1;
}

static int chacha20_poly1305_final(void *vctx, unsigned char *out, size_t *outl,
    size_t outsize)
{
    PROV_CIPHER_CTX *ctx = (PROV_CIPHER_CTX *)vctx;
    PROV_CIPHER_HW_CHACHA20_POLY1305 *hw = (PROV_CIPHER_HW_CHACHA20_POLY1305 *)ctx->hw;

    if (!ossl_prov_is_running())
        return 0;

    if (hw->aead_cipher(ctx, out, outl, NULL, 0) <= 0)
        return 0;

    *outl = 0;
    return 1;
}

/* ossl_chacha20_ossl_poly1305_functions */
const OSSL_DISPATCH ossl_chacha20_ossl_poly1305_functions[] = {
    { OSSL_FUNC_CIPHER_NEWCTX, (void (*)(void))chacha20_poly1305_newctx },
    { OSSL_FUNC_CIPHER_FREECTX, (void (*)(void))chacha20_poly1305_freectx },
    { OSSL_FUNC_CIPHER_DUPCTX, (void (*)(void))chacha20_poly1305_dupctx },
    { OSSL_FUNC_CIPHER_ENCRYPT_INIT, (void (*)(void))chacha20_poly1305_einit },
    { OSSL_FUNC_CIPHER_DECRYPT_INIT, (void (*)(void))chacha20_poly1305_dinit },
    { OSSL_FUNC_CIPHER_UPDATE, (void (*)(void))chacha20_poly1305_update },
    { OSSL_FUNC_CIPHER_FINAL, (void (*)(void))chacha20_poly1305_final },
    { OSSL_FUNC_CIPHER_CIPHER, (void (*)(void))chacha20_poly1305_cipher },
    { OSSL_FUNC_CIPHER_GET_PARAMS,
        (void (*)(void))chacha20_poly1305_get_params },
    { OSSL_FUNC_CIPHER_GETTABLE_PARAMS,
        (void (*)(void))chacha20_poly1305_gettable_params },
    { OSSL_FUNC_CIPHER_GET_CTX_PARAMS,
        (void (*)(void))chacha20_poly1305_get_ctx_params },
    { OSSL_FUNC_CIPHER_GETTABLE_CTX_PARAMS,
        (void (*)(void))chacha20_poly1305_gettable_ctx_params },
    { OSSL_FUNC_CIPHER_SET_CTX_PARAMS,
        (void (*)(void))chacha20_poly1305_set_ctx_params },
    { OSSL_FUNC_CIPHER_SETTABLE_CTX_PARAMS,
        (void (*)(void))chacha20_poly1305_settable_ctx_params },
    OSSL_DISPATCH_END
};

Coverage Report

Created: 2025-12-31 06:58

Line	Count	Source
1		/*
2		* Copyright 2019-2025 The OpenSSL Project Authors. All Rights Reserved.
3		*
4		* Licensed under the Apache License 2.0 (the "License"). You may not use
5		* this file except in compliance with the License. You can obtain a copy
6		* in the file LICENSE in the source distribution or at
7		* https://www.openssl.org/source/license.html
8		*/
9		/* clang-format off */
10
11		/* clang-format on */
12
13		/* Dispatch functions for chacha20_poly1305 cipher */
14
15		#include <string.h>
16		#include <openssl/proverr.h>
17		#include "cipher_chacha20_poly1305.h"
18		#include "prov/implementations.h"
19		#include "prov/providercommon.h"
20
21	141k	#define CHACHA20_POLY1305_KEYLEN CHACHA_KEY_SIZE
22	129k	#define CHACHA20_POLY1305_BLKLEN 1
23	1.42k	#define CHACHA20_POLY1305_MAX_IVLEN 12
24	8.79k	#define CHACHA20_POLY1305_MODE 0
25	129k	#define CHACHA20_POLY1305_FLAGS (PROV_CIPHER_FLAG_AEAD \
26	129k	\| PROV_CIPHER_FLAG_CUSTOM_IV)
27
28		static OSSL_FUNC_cipher_newctx_fn chacha20_poly1305_newctx;
29		static OSSL_FUNC_cipher_freectx_fn chacha20_poly1305_freectx;
30		static OSSL_FUNC_cipher_dupctx_fn chacha20_poly1305_dupctx;
31		static OSSL_FUNC_cipher_encrypt_init_fn chacha20_poly1305_einit;
32		static OSSL_FUNC_cipher_decrypt_init_fn chacha20_poly1305_dinit;
33		static OSSL_FUNC_cipher_get_params_fn chacha20_poly1305_get_params;
34		static OSSL_FUNC_cipher_get_ctx_params_fn chacha20_poly1305_get_ctx_params;
35		static OSSL_FUNC_cipher_set_ctx_params_fn chacha20_poly1305_set_ctx_params;
36		static OSSL_FUNC_cipher_cipher_fn chacha20_poly1305_cipher;
37		static OSSL_FUNC_cipher_final_fn chacha20_poly1305_final;
38		static OSSL_FUNC_cipher_gettable_ctx_params_fn chacha20_poly1305_gettable_ctx_params;
39		static OSSL_FUNC_cipher_settable_ctx_params_fn chacha20_poly1305_settable_ctx_params;
40		#define chacha20_poly1305_gettable_params ossl_cipher_generic_gettable_params
41		#define chacha20_poly1305_update chacha20_poly1305_cipher
42
43		static void chacha20_poly1305_newctx(void provctx)
44	8.79k	{
45	8.79k	PROV_CHACHA20_POLY1305_CTX *ctx;
46
47	8.79k	if (!ossl_prov_is_running())
48	0	return NULL;
49
50	8.79k	ctx = OPENSSL_zalloc(sizeof(*ctx));
51	8.79k	if (ctx != NULL) {
52	8.79k	ossl_cipher_generic_initkey(&ctx->base, CHACHA20_POLY1305_KEYLEN * 8,
53	8.79k	CHACHA20_POLY1305_BLKLEN * 8,
54	8.79k	CHACHA20_POLY1305_IVLEN * 8,
55	8.79k	CHACHA20_POLY1305_MODE,
56	8.79k	CHACHA20_POLY1305_FLAGS,
57	8.79k	ossl_prov_cipher_hw_chacha20_poly1305(
58	8.79k	CHACHA20_POLY1305_KEYLEN * 8),
59	8.79k	NULL);
60	8.79k	ctx->tls_payload_length = NO_TLS_PAYLOAD_LENGTH;
61	8.79k	ossl_chacha20_initctx(&ctx->chacha);
62	8.79k	}
63	8.79k	return ctx;
64	8.79k	}
65
66		static void chacha20_poly1305_dupctx(void provctx)
67	0	{
68	0	PROV_CHACHA20_POLY1305_CTX *ctx = provctx;
69	0	PROV_CHACHA20_POLY1305_CTX *dctx = NULL;
70
71	0	if (ctx == NULL)
72	0	return NULL;
73	0	dctx = OPENSSL_memdup(ctx, sizeof(*ctx));
74	0	if (dctx != NULL && dctx->base.tlsmac != NULL && dctx->base.alloced) {
75	0	dctx->base.tlsmac = OPENSSL_memdup(dctx->base.tlsmac,
76	0	dctx->base.tlsmacsize);
77	0	if (dctx->base.tlsmac == NULL) {
78	0	OPENSSL_free(dctx);
79	0	dctx = NULL;
80	0	}
81	0	}
82	0	return dctx;
83	0	}
84
85		static void chacha20_poly1305_freectx(void *vctx)
86	8.79k	{
87	8.79k	PROV_CHACHA20_POLY1305_CTX ctx = (PROV_CHACHA20_POLY1305_CTX )vctx;
88
89	8.79k	if (ctx != NULL) {
90	8.79k	ossl_cipher_generic_reset_ctx((PROV_CIPHER_CTX *)vctx);
91	8.79k	OPENSSL_clear_free(ctx, sizeof(*ctx));
92	8.79k	}
93	8.79k	}
94
95		static int chacha20_poly1305_get_params(OSSL_PARAM params[])
96	120k	{
97	120k	return ossl_cipher_generic_get_params(params, 0, CHACHA20_POLY1305_FLAGS,
98	120k	CHACHA20_POLY1305_KEYLEN * 8,
99	120k	CHACHA20_POLY1305_BLKLEN * 8,
100	120k	CHACHA20_POLY1305_IVLEN * 8);
101	120k	}
102
103		/* clang-format off */
104		/* Machine generated by util/perl/OpenSSL/paramnames.pm */
105		#ifndef chacha20_poly1305_get_ctx_params_list
106		static const OSSL_PARAM chacha20_poly1305_get_ctx_params_list[] = {
107		OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_KEYLEN, NULL),
108		OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_IVLEN, NULL),
109		OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_AEAD_TAGLEN, NULL),
110		OSSL_PARAM_octet_string(OSSL_CIPHER_PARAM_AEAD_TAG, NULL, 0),
111		OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_AEAD_TLS1_AAD_PAD, NULL),
112		OSSL_PARAM_END
113		};
114		#endif
115
116		#ifndef chacha20_poly1305_get_ctx_params_st
117		struct chacha20_poly1305_get_ctx_params_st {
118		OSSL_PARAM *ivlen;
119		OSSL_PARAM *keylen;
120		OSSL_PARAM *pad;
121		OSSL_PARAM *tag;
122		OSSL_PARAM *taglen;
123		};
124		#endif
125
126		#ifndef chacha20_poly1305_get_ctx_params_decoder
127		static int chacha20_poly1305_get_ctx_params_decoder
128		(const OSSL_PARAM p, struct chacha20_poly1305_get_ctx_params_st r)
129	42.6k	{
130	42.6k	const char *s;
131
132	42.6k	memset(r, 0, sizeof(*r));
133	42.6k	if (p != NULL)
134	85.3k	for (; (s = p->key) != NULL; p++)
135	42.6k	switch(s[0]) {
136	0	default:
137	0	break;
138	2.73k	case 'i':
139	2.73k	if (ossl_likely(strcmp("vlen", s + 1) == 0)) {
140		/* OSSL_CIPHER_PARAM_IVLEN */
141	2.73k	if (ossl_unlikely(r->ivlen != NULL)) {
142	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
143	0	"param %s is repeated", s);
144	0	return 0;
145	0	}
146	2.73k	r->ivlen = (OSSL_PARAM *)p;
147	2.73k	}
148	2.73k	break;
149	3.02k	case 'k':
150	3.02k	if (ossl_likely(strcmp("eylen", s + 1) == 0)) {
151		/* OSSL_CIPHER_PARAM_KEYLEN */
152	3.02k	if (ossl_unlikely(r->keylen != NULL)) {
153	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
154	0	"param %s is repeated", s);
155	0	return 0;
156	0	}
157	3.02k	r->keylen = (OSSL_PARAM *)p;
158	3.02k	}
159	3.02k	break;
160	36.9k	case 't':
161	36.9k	switch(s[1]) {
162	0	default:
163	0	break;
164	35.3k	case 'a':
165	35.3k	switch(s[2]) {
166	0	default:
167	0	break;
168	35.3k	case 'g':
169	35.3k	switch(s[3]) {
170	0	default:
171	0	break;
172	0	case 'l':
173	0	if (ossl_likely(strcmp("en", s + 4) == 0)) {
174		/* OSSL_CIPHER_PARAM_AEAD_TAGLEN */
175	0	if (ossl_unlikely(r->taglen != NULL)) {
176	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
177	0	"param %s is repeated", s);
178	0	return 0;
179	0	}
180	0	r->taglen = (OSSL_PARAM *)p;
181	0	}
182	0	break;
183	35.3k	case '\0':
184	35.3k	if (ossl_unlikely(r->tag != NULL)) {
185	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
186	0	"param %s is repeated", s);
187	0	return 0;
188	0	}
189	35.3k	r->tag = (OSSL_PARAM *)p;
190	35.3k	}
191	35.3k	}
192	35.3k	break;
193	35.3k	case 'l':
194	1.55k	if (ossl_likely(strcmp("saadpad", s + 2) == 0)) {
195		/* OSSL_CIPHER_PARAM_AEAD_TLS1_AAD_PAD */
196	1.54k	if (ossl_unlikely(r->pad != NULL)) {
197	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
198	0	"param %s is repeated", s);
199	0	return 0;
200	0	}
201	1.54k	r->pad = (OSSL_PARAM *)p;
202	1.54k	}
203	36.9k	}
204	42.6k	}
205	42.6k	return 1;
206	42.6k	}
207		#endif
208		/* End of machine generated */
209		/* clang-format on */
210
211		static int chacha20_poly1305_get_ctx_params(void *vctx, OSSL_PARAM params[])
212	42.6k	{
213	42.6k	PROV_CHACHA20_POLY1305_CTX ctx = (PROV_CHACHA20_POLY1305_CTX )vctx;
214	42.6k	struct chacha20_poly1305_get_ctx_params_st p;
215
216	42.6k	if (ctx == NULL \|\| !chacha20_poly1305_get_ctx_params_decoder(params, &p))
217	0	return 0;
218
219	42.6k	if (p.ivlen != NULL
220	2.73k	&& !OSSL_PARAM_set_size_t(p.ivlen, CHACHA20_POLY1305_IVLEN)) {
221	0	ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
222	0	return 0;
223	0	}
224
225	42.6k	if (p.keylen != NULL
226	3.02k	&& !OSSL_PARAM_set_size_t(p.keylen, CHACHA20_POLY1305_KEYLEN)) {
227	0	ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
228	0	return 0;
229	0	}
230
231	42.6k	if (p.taglen != NULL
232	0	&& !OSSL_PARAM_set_size_t(p.taglen, ctx->tag_len)) {
233	0	ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
234	0	return 0;
235	0	}
236
237	42.6k	if (p.pad != NULL
238	1.54k	&& !OSSL_PARAM_set_size_t(p.pad, ctx->tls_aad_pad_sz)) {
239	0	ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
240	0	return 0;
241	0	}
242
243	42.6k	if (p.tag != NULL) {
244	35.3k	if (p.tag->data_type != OSSL_PARAM_OCTET_STRING) {
245	0	ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
246	0	return 0;
247	0	}
248	35.3k	if (!ctx->base.enc) {
249	0	ERR_raise(ERR_LIB_PROV, PROV_R_TAG_NOT_SET);
250	0	return 0;
251	0	}
252	35.3k	if (p.tag->data_size == 0 \|\| p.tag->data_size > POLY1305_BLOCK_SIZE) {
253	0	ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_TAG_LENGTH);
254	0	return 0;
255	0	}
256	35.3k	memcpy(p.tag->data, ctx->tag, p.tag->data_size);
257	35.3k	}
258	42.6k	return 1;
259	42.6k	}
260
261		static const OSSL_PARAM chacha20_poly1305_gettable_ctx_params(ossl_unused void cctx, ossl_unused void *provctx)
262	64	{
263	64	return chacha20_poly1305_get_ctx_params_list;
264	64	}
265
266		/* clang-format off */
267		/* Machine generated by util/perl/OpenSSL/paramnames.pm */
268		#ifndef chacha20_poly1305_set_ctx_params_list
269		static const OSSL_PARAM chacha20_poly1305_set_ctx_params_list[] = {
270		OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_KEYLEN, NULL),
271		OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_IVLEN, NULL),
272		OSSL_PARAM_octet_string(OSSL_CIPHER_PARAM_AEAD_TAG, NULL, 0),
273		OSSL_PARAM_octet_string(OSSL_CIPHER_PARAM_AEAD_TLS1_AAD, NULL, 0),
274		OSSL_PARAM_octet_string(OSSL_CIPHER_PARAM_AEAD_TLS1_IV_FIXED, NULL, 0),
275		OSSL_PARAM_END
276		};
277		#endif
278
279		#ifndef chacha20_poly1305_set_ctx_params_st
280		struct chacha20_poly1305_set_ctx_params_st {
281		OSSL_PARAM *aad;
282		OSSL_PARAM *fixed;
283		OSSL_PARAM *ivlen;
284		OSSL_PARAM *keylen;
285		OSSL_PARAM *tag;
286		};
287		#endif
288
289		#ifndef chacha20_poly1305_set_ctx_params_decoder
290		static int chacha20_poly1305_set_ctx_params_decoder
291		(const OSSL_PARAM p, struct chacha20_poly1305_set_ctx_params_st r)
292	89.3k	{
293	89.3k	const char *s;
294
295	89.3k	memset(r, 0, sizeof(*r));
296	89.3k	if (p != NULL)
297	52.7k	for (; (s = p->key) != NULL; p++)
298	26.4k	switch(s[0]) {
299	0	default:
300	0	break;
301	1.42k	case 'i':
302	1.42k	if (ossl_likely(strcmp("vlen", s + 1) == 0)) {
303		/* OSSL_CIPHER_PARAM_IVLEN */
304	1.42k	if (ossl_unlikely(r->ivlen != NULL)) {
305	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
306	0	"param %s is repeated", s);
307	0	return 0;
308	0	}
309	1.42k	r->ivlen = (OSSL_PARAM *)p;
310	1.42k	}
311	1.42k	break;
312	1.42k	case 'k':
313	0	if (ossl_likely(strcmp("eylen", s + 1) == 0)) {
314		/* OSSL_CIPHER_PARAM_KEYLEN */
315	0	if (ossl_unlikely(r->keylen != NULL)) {
316	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
317	0	"param %s is repeated", s);
318	0	return 0;
319	0	}
320	0	r->keylen = (OSSL_PARAM *)p;
321	0	}
322	0	break;
323	25.0k	case 't':
324	25.0k	switch(s[1]) {
325	0	default:
326	0	break;
327	23.1k	case 'a':
328	23.1k	if (ossl_likely(strcmp("g", s + 2) == 0)) {
329		/* OSSL_CIPHER_PARAM_AEAD_TAG */
330	23.1k	if (ossl_unlikely(r->tag != NULL)) {
331	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
332	0	"param %s is repeated", s);
333	0	return 0;
334	0	}
335	23.1k	r->tag = (OSSL_PARAM *)p;
336	23.1k	}
337	23.1k	break;
338	23.1k	case 'l':
339	1.85k	switch(s[2]) {
340	0	default:
341	0	break;
342	1.85k	case 's':
343	1.85k	switch(s[3]) {
344	296	default:
345	296	break;
346	1.56k	case 'a':
347	1.56k	if (ossl_likely(strcmp("ad", s + 4) == 0)) {
348		/* OSSL_CIPHER_PARAM_AEAD_TLS1_AAD */
349	1.56k	if (ossl_unlikely(r->aad != NULL)) {
350	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
351	0	"param %s is repeated", s);
352	0	return 0;
353	0	}
354	1.56k	r->aad = (OSSL_PARAM *)p;
355	1.56k	}
356	1.56k	break;
357	1.56k	case 'i':
358	0	if (ossl_likely(strcmp("vfixed", s + 4) == 0)) {
359		/* OSSL_CIPHER_PARAM_AEAD_TLS1_IV_FIXED */
360	0	if (ossl_unlikely(r->fixed != NULL)) {
361	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
362	0	"param %s is repeated", s);
363	0	return 0;
364	0	}
365	0	r->fixed = (OSSL_PARAM *)p;
366	0	}
367	1.85k	}
368	1.85k	}
369	25.0k	}
370	26.4k	}
371	89.3k	return 1;
372	89.3k	}
373		#endif
374		/* End of machine generated */
375		/* clang-format on */
376
377		static const OSSL_PARAM *chacha20_poly1305_settable_ctx_params(
378		ossl_unused void cctx, ossl_unused void provctx)
379	4	{
380	4	return chacha20_poly1305_set_ctx_params_list;
381	4	}
382
383		static int chacha20_poly1305_set_ctx_params(void *vctx,
384		const OSSL_PARAM params[])
385	89.3k	{
386	89.3k	size_t len;
387	89.3k	PROV_CHACHA20_POLY1305_CTX ctx = (PROV_CHACHA20_POLY1305_CTX )vctx;
388	89.3k	PROV_CIPHER_HW_CHACHA20_POLY1305 hw = (PROV_CIPHER_HW_CHACHA20_POLY1305 )ctx->base.hw;
389	89.3k	struct chacha20_poly1305_set_ctx_params_st p;
390
391	89.3k	if (!chacha20_poly1305_set_ctx_params_decoder(params, &p))
392	0	return 0;
393
394	89.3k	if (p.keylen != NULL) {
395	0	if (!OSSL_PARAM_get_size_t(p.keylen, &len)) {
396	0	ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_GET_PARAMETER);
397	0	return 0;
398	0	}
399	0	if (len != CHACHA20_POLY1305_KEYLEN) {
400	0	ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_KEY_LENGTH);
401	0	return 0;
402	0	}
403	0	}
404
405	89.3k	if (p.ivlen != NULL) {
406	1.42k	if (!OSSL_PARAM_get_size_t(p.ivlen, &len)) {
407	0	ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_GET_PARAMETER);
408	0	return 0;
409	0	}
410	1.42k	if (len != CHACHA20_POLY1305_MAX_IVLEN) {
411	0	ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_IV_LENGTH);
412	0	return 0;
413	0	}
414	1.42k	}
415
416	89.3k	if (p.tag != NULL) {
417	23.1k	if (p.tag->data_type != OSSL_PARAM_OCTET_STRING) {
418	0	ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_GET_PARAMETER);
419	0	return 0;
420	0	}
421	23.1k	if (p.tag->data_size == 0 \|\| p.tag->data_size > POLY1305_BLOCK_SIZE) {
422	0	ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_TAG_LENGTH);
423	0	return 0;
424	0	}
425	23.1k	if (p.tag->data != NULL) {
426	23.1k	if (ctx->base.enc) {
427	0	ERR_raise(ERR_LIB_PROV, PROV_R_TAG_NOT_NEEDED);
428	0	return 0;
429	0	}
430	23.1k	memcpy(ctx->tag, p.tag->data, p.tag->data_size);
431	23.1k	}
432	23.1k	ctx->tag_len = p.tag->data_size;
433	23.1k	}
434
435	89.3k	if (p.aad != NULL) {
436	1.56k	if (p.aad->data_type != OSSL_PARAM_OCTET_STRING) {
437	0	ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_GET_PARAMETER);
438	0	return 0;
439	0	}
440	1.56k	len = hw->tls_init(&ctx->base, p.aad->data, p.aad->data_size);
441	1.56k	if (len == 0) {
442	17	ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_DATA);
443	17	return 0;
444	17	}
445	1.54k	ctx->tls_aad_pad_sz = len;
446	1.54k	}
447
448	89.3k	if (p.fixed != NULL) {
449	0	if (p.fixed->data_type != OSSL_PARAM_OCTET_STRING) {
450	0	ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_GET_PARAMETER);
451	0	return 0;
452	0	}
453	0	if (hw->tls_iv_set_fixed(&ctx->base, p.fixed->data,
454	0	p.fixed->data_size)
455	0	== 0) {
456	0	ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_IV_LENGTH);
457	0	return 0;
458	0	}
459	0	}
460	89.3k	return 1;
461	89.3k	}
462
463		static int chacha20_poly1305_einit(void vctx, const unsigned char key,
464		size_t keylen, const unsigned char *iv,
465		size_t ivlen, const OSSL_PARAM params[])
466	99.4k	{
467	99.4k	int ret;
468
469		/* The generic function checks for ossl_prov_is_running() */
470	99.4k	ret = ossl_cipher_generic_einit(vctx, key, keylen, iv, ivlen, NULL);
471	99.4k	if (ret && iv != NULL) {
472	93.9k	PROV_CIPHER_CTX ctx = (PROV_CIPHER_CTX )vctx;
473	93.9k	PROV_CIPHER_HW_CHACHA20_POLY1305 hw = (PROV_CIPHER_HW_CHACHA20_POLY1305 )ctx->hw;
474
475	93.9k	hw->initiv(ctx);
476	93.9k	}
477	99.4k	if (ret && !chacha20_poly1305_set_ctx_params(vctx, params))
478	0	ret = 0;
479	99.4k	return ret;
480	99.4k	}
481
482		static int chacha20_poly1305_dinit(void vctx, const unsigned char key,
483		size_t keylen, const unsigned char *iv,
484		size_t ivlen, const OSSL_PARAM params[])
485	84.0k	{
486	84.0k	int ret;
487
488		/* The generic function checks for ossl_prov_is_running() */
489	84.0k	ret = ossl_cipher_generic_dinit(vctx, key, keylen, iv, ivlen, NULL);
490	84.0k	if (ret && iv != NULL) {
491	80.6k	PROV_CIPHER_CTX ctx = (PROV_CIPHER_CTX )vctx;
492	80.6k	PROV_CIPHER_HW_CHACHA20_POLY1305 hw = (PROV_CIPHER_HW_CHACHA20_POLY1305 )ctx->hw;
493
494	80.6k	hw->initiv(ctx);
495	80.6k	}
496	84.0k	if (ret && !chacha20_poly1305_set_ctx_params(vctx, params))
497	0	ret = 0;
498	84.0k	return ret;
499	84.0k	}
500
501		static int chacha20_poly1305_cipher(void vctx, unsigned char out,
502		size_t *outl, size_t outsize,
503		const unsigned char *in, size_t inl)
504	348k	{
505	348k	PROV_CIPHER_CTX ctx = (PROV_CIPHER_CTX )vctx;
506	348k	PROV_CIPHER_HW_CHACHA20_POLY1305 hw = (PROV_CIPHER_HW_CHACHA20_POLY1305 )ctx->hw;
507
508	348k	if (!ossl_prov_is_running())
509	0	return 0;
510
511	348k	if (inl == 0) {
512	0	*outl = 0;
513	0	return 1;
514	0	}
515
516	348k	if (outsize < inl) {
517	0	ERR_raise(ERR_LIB_PROV, PROV_R_OUTPUT_BUFFER_TOO_SMALL);
518	0	return 0;
519	0	}
520
521	348k	if (!hw->aead_cipher(ctx, out, outl, in, inl))
522	6.98k	return 0;
523
524	341k	return 1;
525	348k	}
526
527		static int chacha20_poly1305_final(void vctx, unsigned char out, size_t *outl,
528		size_t outsize)
529	131k	{
530	131k	PROV_CIPHER_CTX ctx = (PROV_CIPHER_CTX )vctx;
531	131k	PROV_CIPHER_HW_CHACHA20_POLY1305 hw = (PROV_CIPHER_HW_CHACHA20_POLY1305 )ctx->hw;
532
533	131k	if (!ossl_prov_is_running())
534	0	return 0;
535
536	131k	if (hw->aead_cipher(ctx, out, outl, NULL, 0) <= 0)
537	66.5k	return 0;
538
539	65.2k	*outl = 0;
540	65.2k	return 1;
541	131k	}
542
543		/* ossl_chacha20_ossl_poly1305_functions */
544		const OSSL_DISPATCH ossl_chacha20_ossl_poly1305_functions[] = {
545		{ OSSL_FUNC_CIPHER_NEWCTX, (void (*)(void))chacha20_poly1305_newctx },
546		{ OSSL_FUNC_CIPHER_FREECTX, (void (*)(void))chacha20_poly1305_freectx },
547		{ OSSL_FUNC_CIPHER_DUPCTX, (void (*)(void))chacha20_poly1305_dupctx },
548		{ OSSL_FUNC_CIPHER_ENCRYPT_INIT, (void (*)(void))chacha20_poly1305_einit },
549		{ OSSL_FUNC_CIPHER_DECRYPT_INIT, (void (*)(void))chacha20_poly1305_dinit },
550		{ OSSL_FUNC_CIPHER_UPDATE, (void (*)(void))chacha20_poly1305_update },
551		{ OSSL_FUNC_CIPHER_FINAL, (void (*)(void))chacha20_poly1305_final },
552		{ OSSL_FUNC_CIPHER_CIPHER, (void (*)(void))chacha20_poly1305_cipher },
553		{ OSSL_FUNC_CIPHER_GET_PARAMS,
554		(void (*)(void))chacha20_poly1305_get_params },
555		{ OSSL_FUNC_CIPHER_GETTABLE_PARAMS,
556		(void (*)(void))chacha20_poly1305_gettable_params },
557		{ OSSL_FUNC_CIPHER_GET_CTX_PARAMS,
558		(void (*)(void))chacha20_poly1305_get_ctx_params },
559		{ OSSL_FUNC_CIPHER_GETTABLE_CTX_PARAMS,
560		(void (*)(void))chacha20_poly1305_gettable_ctx_params },
561		{ OSSL_FUNC_CIPHER_SET_CTX_PARAMS,
562		(void (*)(void))chacha20_poly1305_set_ctx_params },
563		{ OSSL_FUNC_CIPHER_SETTABLE_CTX_PARAMS,
564		(void (*)(void))chacha20_poly1305_settable_ctx_params },
565		OSSL_DISPATCH_END
566		};