/src/nss-nspr/nss/lib/softoken/jpakesftk.c

Source (jump to first uncovered line)
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "seccomon.h"
#include "secerr.h"
#include "blapi.h"
#include "pkcs11i.h"
#include "softoken.h"

static CK_RV
jpake_mapStatus(SECStatus rv, CK_RV invalidArgsMapping)
{
    int err;
    if (rv == SECSuccess)
        return CKR_OK;
    err = PORT_GetError();
    switch (err) {
        /* XXX: SEC_ERROR_INVALID_ARGS might be caused by invalid template
            parameters. */
        case SEC_ERROR_INVALID_ARGS:
            return invalidArgsMapping;
        case SEC_ERROR_BAD_SIGNATURE:
            return CKR_SIGNATURE_INVALID;
        case SEC_ERROR_NO_MEMORY:
            return CKR_HOST_MEMORY;
    }
    return CKR_FUNCTION_FAILED;
}

/* If key is not NULL then the gx value will be stored as an attribute with
   the type given by the gxAttrType parameter. */
static CK_RV
jpake_Sign(PLArenaPool *arena, const PQGParams *pqg, HASH_HashType hashType,
           const SECItem *signerID, const SECItem *x,
           CK_NSS_JPAKEPublicValue *out)
{
    SECItem gx, gv, r;
    CK_RV crv;

    PORT_Assert(arena != NULL);

    gx.data = NULL;
    gv.data = NULL;
    r.data = NULL;
    crv = jpake_mapStatus(JPAKE_Sign(arena, pqg, hashType, signerID, x, NULL,
                                     NULL, &gx, &gv, &r),
                          CKR_MECHANISM_PARAM_INVALID);
    if (crv == CKR_OK) {
        if ((out->pGX != NULL && out->ulGXLen >= gx.len) &&
            (out->pGV != NULL && out->ulGVLen >= gv.len) &&
            (out->pR != NULL && out->ulRLen >= r.len)) {
            PORT_Memcpy(out->pGX, gx.data, gx.len);
            PORT_Memcpy(out->pGV, gv.data, gv.len);
            PORT_Memcpy(out->pR, r.data, r.len);
            out->ulGXLen = gx.len;
            out->ulGVLen = gv.len;
            out->ulRLen = r.len;
        } else {
            crv = CKR_MECHANISM_PARAM_INVALID;
        }
    }
    return crv;
}

static CK_RV
jpake_Verify(PLArenaPool *arena, const PQGParams *pqg,
             HASH_HashType hashType, const SECItem *signerID,
             const CK_BYTE *peerIDData, CK_ULONG peerIDLen,
             const CK_NSS_JPAKEPublicValue *publicValueIn)
{
    SECItem peerID, gx, gv, r;
    peerID.data = (unsigned char *)peerIDData;
    peerID.len = peerIDLen;
    gx.data = publicValueIn->pGX;
    gx.len = publicValueIn->ulGXLen;
    gv.data = publicValueIn->pGV;
    gv.len = publicValueIn->ulGVLen;
    r.data = publicValueIn->pR;
    r.len = publicValueIn->ulRLen;
    return jpake_mapStatus(JPAKE_Verify(arena, pqg, hashType, signerID, &peerID,
                                        &gx, &gv, &r),
                           CKR_MECHANISM_PARAM_INVALID);
}

#define NUM_ELEM(x) (sizeof(x) / sizeof(x)[0])

/* If the template has the key type set, ensure that it was set to the correct
 * value. If the template did not have the key type set, set it to the
 * correct value.
 */
static CK_RV
jpake_enforceKeyType(SFTKObject *key, CK_KEY_TYPE keyType)
{
    CK_RV crv;
    SFTKAttribute *keyTypeAttr = sftk_FindAttribute(key, CKA_KEY_TYPE);
    if (keyTypeAttr != NULL) {
        crv = *(CK_KEY_TYPE *)keyTypeAttr->attrib.pValue == keyType
                  ? CKR_OK
                  : CKR_TEMPLATE_INCONSISTENT;
        sftk_FreeAttribute(keyTypeAttr);
    } else {
        crv = sftk_forceAttribute(key, CKA_KEY_TYPE, &keyType, sizeof keyType);
    }
    return crv;
}

static CK_RV
jpake_MultipleSecItem2Attribute(SFTKObject *key, const SFTKItemTemplate *attrs,
                                size_t attrsCount)
{
    size_t i;

    for (i = 0; i < attrsCount; ++i) {
        CK_RV crv = sftk_forceAttribute(key, attrs[i].type, attrs[i].item->data,
                                        attrs[i].item->len);
        if (crv != CKR_OK)
            return crv;
    }
    return CKR_OK;
}

CK_RV
jpake_Round1(HASH_HashType hashType, CK_NSS_JPAKERound1Params *params,
             SFTKObject *key)
{
    CK_RV crv;
    PQGParams pqg;
    PLArenaPool *arena;
    SECItem signerID;
    SFTKItemTemplate templateAttrs[] = {
        { CKA_PRIME, &pqg.prime },
        { CKA_SUBPRIME, &pqg.subPrime },
        { CKA_BASE, &pqg.base },
        { CKA_NSS_JPAKE_SIGNERID, &signerID }
    };
    SECItem x2, gx1, gx2;
    const SFTKItemTemplate generatedAttrs[] = {
        { CKA_NSS_JPAKE_X2, &x2 },
        { CKA_NSS_JPAKE_GX1, &gx1 },
        { CKA_NSS_JPAKE_GX2, &gx2 },
    };
    SECItem x1;

    PORT_Assert(params != NULL);
    PORT_Assert(key != NULL);

    arena = PORT_NewArena(NSS_SOFTOKEN_DEFAULT_CHUNKSIZE);
    if (arena == NULL)
        crv = CKR_HOST_MEMORY;

    crv = sftk_MultipleAttribute2SecItem(arena, key, templateAttrs,
                                         NUM_ELEM(templateAttrs));

    if (crv == CKR_OK && (signerID.data == NULL || signerID.len == 0))
        crv = CKR_TEMPLATE_INCOMPLETE;

    /* generate x1, g^x1 and the proof of knowledge of x1 */
    if (crv == CKR_OK) {
        x1.data = NULL;
        crv = jpake_mapStatus(DSA_NewRandom(arena, &pqg.subPrime, &x1),
                              CKR_TEMPLATE_INCONSISTENT);
    }
    if (crv == CKR_OK)
        crv = jpake_Sign(arena, &pqg, hashType, &signerID, &x1, &params->gx1);

    /* generate x2, g^x2 and the proof of knowledge of x2 */
    if (crv == CKR_OK) {
        x2.data = NULL;
        crv = jpake_mapStatus(DSA_NewRandom(arena, &pqg.subPrime, &x2),
                              CKR_TEMPLATE_INCONSISTENT);
    }
    if (crv == CKR_OK)
        crv = jpake_Sign(arena, &pqg, hashType, &signerID, &x2, &params->gx2);

    /* Save the values needed for round 2 into CKA_VALUE */
    if (crv == CKR_OK) {
        gx1.data = params->gx1.pGX;
        gx1.len = params->gx1.ulGXLen;
        gx2.data = params->gx2.pGX;
        gx2.len = params->gx2.ulGXLen;
        crv = jpake_MultipleSecItem2Attribute(key, generatedAttrs,
                                              NUM_ELEM(generatedAttrs));
    }

    PORT_FreeArena(arena, PR_TRUE);
    return crv;
}

CK_RV
jpake_Round2(HASH_HashType hashType, CK_NSS_JPAKERound2Params *params,
             SFTKObject *sourceKey, SFTKObject *key)
{
    CK_RV crv;
    PLArenaPool *arena;
    PQGParams pqg;
    SECItem signerID, x2, gx1, gx2;
    SFTKItemTemplate sourceAttrs[] = {
        { CKA_PRIME, &pqg.prime },
        { CKA_SUBPRIME, &pqg.subPrime },
        { CKA_BASE, &pqg.base },
        { CKA_NSS_JPAKE_SIGNERID, &signerID },
        { CKA_NSS_JPAKE_X2, &x2 },
        { CKA_NSS_JPAKE_GX1, &gx1 },
        { CKA_NSS_JPAKE_GX2, &gx2 },
    };
    SECItem x2s, gx3, gx4;
    const SFTKItemTemplate copiedAndGeneratedAttrs[] = {
        { CKA_NSS_JPAKE_SIGNERID, &signerID },
        { CKA_PRIME, &pqg.prime },
        { CKA_SUBPRIME, &pqg.subPrime },
        { CKA_NSS_JPAKE_X2, &x2 },
        { CKA_NSS_JPAKE_X2S, &x2s },
        { CKA_NSS_JPAKE_GX1, &gx1 },
        { CKA_NSS_JPAKE_GX2, &gx2 },
        { CKA_NSS_JPAKE_GX3, &gx3 },
        { CKA_NSS_JPAKE_GX4, &gx4 }
    };
    SECItem peerID;

    PORT_Assert(params != NULL);
    PORT_Assert(sourceKey != NULL);
    PORT_Assert(key != NULL);

    arena = PORT_NewArena(NSS_SOFTOKEN_DEFAULT_CHUNKSIZE);
    if (arena == NULL)
        crv = CKR_HOST_MEMORY;

    /* TODO: check CKK_NSS_JPAKE_ROUND1 */

    crv = sftk_MultipleAttribute2SecItem(arena, sourceKey, sourceAttrs,
                                         NUM_ELEM(sourceAttrs));

    /* Get the peer's ID out of the template and sanity-check it. */
    if (crv == CKR_OK)
        crv = sftk_Attribute2SecItem(arena, &peerID, key,
                                     CKA_NSS_JPAKE_PEERID);
    if (crv == CKR_OK && (peerID.data == NULL || peerID.len == 0))
        crv = CKR_TEMPLATE_INCOMPLETE;
    if (crv == CKR_OK && SECITEM_CompareItem(&signerID, &peerID) == SECEqual)
        crv = CKR_TEMPLATE_INCONSISTENT;

    /* Verify zero-knowledge proofs for g^x3 and g^x4 */
    if (crv == CKR_OK)
        crv = jpake_Verify(arena, &pqg, hashType, &signerID,
                           peerID.data, peerID.len, &params->gx3);
    if (crv == CKR_OK)
        crv = jpake_Verify(arena, &pqg, hashType, &signerID,
                           peerID.data, peerID.len, &params->gx4);

    /* Calculate the base and x2s for A=base^x2s */
    if (crv == CKR_OK) {
        SECItem s;
        s.data = params->pSharedKey;
        s.len = params->ulSharedKeyLen;
        gx3.data = params->gx3.pGX;
        gx3.len = params->gx3.ulGXLen;
        gx4.data = params->gx4.pGX;
        gx4.len = params->gx4.ulGXLen;
        pqg.base.data = NULL;
        x2s.data = NULL;
        crv = jpake_mapStatus(JPAKE_Round2(arena, &pqg.prime, &pqg.subPrime,
                                           &gx1, &gx3, &gx4, &pqg.base,
                                           &x2, &s, &x2s),
                              CKR_MECHANISM_PARAM_INVALID);
    }

    /* Generate A=base^x2s and its zero-knowledge proof. */
    if (crv == CKR_OK)
        crv = jpake_Sign(arena, &pqg, hashType, &signerID, &x2s, &params->A);

    /* Copy P and Q from the ROUND1 key to the ROUND2 key and save the values
       needed for the final key material derivation into CKA_VALUE. */
    if (crv == CKR_OK)
        crv = sftk_forceAttribute(key, CKA_PRIME, pqg.prime.data,
                                  pqg.prime.len);
    if (crv == CKR_OK)
        crv = sftk_forceAttribute(key, CKA_SUBPRIME, pqg.subPrime.data,
                                  pqg.subPrime.len);
    if (crv == CKR_OK) {
        crv = jpake_MultipleSecItem2Attribute(key, copiedAndGeneratedAttrs,
                                              NUM_ELEM(copiedAndGeneratedAttrs));
    }

    if (crv == CKR_OK)
        crv = jpake_enforceKeyType(key, CKK_NSS_JPAKE_ROUND2);

    PORT_FreeArena(arena, PR_TRUE);
    return crv;
}

CK_RV
jpake_Final(HASH_HashType hashType, const CK_NSS_JPAKEFinalParams *param,
            SFTKObject *sourceKey, SFTKObject *key)
{
    PLArenaPool *arena;
    SECItem K;
    PQGParams pqg;
    CK_RV crv;
    SECItem peerID, signerID, x2s, x2, gx1, gx2, gx3, gx4;
    SFTKItemTemplate sourceAttrs[] = {
        { CKA_NSS_JPAKE_PEERID, &peerID },
        { CKA_NSS_JPAKE_SIGNERID, &signerID },
        { CKA_PRIME, &pqg.prime },
        { CKA_SUBPRIME, &pqg.subPrime },
        { CKA_NSS_JPAKE_X2, &x2 },
        { CKA_NSS_JPAKE_X2S, &x2s },
        { CKA_NSS_JPAKE_GX1, &gx1 },
        { CKA_NSS_JPAKE_GX2, &gx2 },
        { CKA_NSS_JPAKE_GX3, &gx3 },
        { CKA_NSS_JPAKE_GX4, &gx4 }
    };

    PORT_Assert(param != NULL);
    PORT_Assert(sourceKey != NULL);
    PORT_Assert(key != NULL);

    arena = PORT_NewArena(NSS_SOFTOKEN_DEFAULT_CHUNKSIZE);
    if (arena == NULL)
        crv = CKR_HOST_MEMORY;

    /* TODO: verify key type CKK_NSS_JPAKE_ROUND2 */

    crv = sftk_MultipleAttribute2SecItem(arena, sourceKey, sourceAttrs,
                                         NUM_ELEM(sourceAttrs));

    /* Calculate base for B=base^x4s */
    if (crv == CKR_OK) {
        pqg.base.data = NULL;
        crv = jpake_mapStatus(JPAKE_Round2(arena, &pqg.prime, &pqg.subPrime,
                                           &gx1, &gx2, &gx3, &pqg.base,
                                           NULL, NULL, NULL),
                              CKR_MECHANISM_PARAM_INVALID);
    }

    /* Verify zero-knowledge proof for B */
    if (crv == CKR_OK)
        crv = jpake_Verify(arena, &pqg, hashType, &signerID,
                           peerID.data, peerID.len, &param->B);
    if (crv == CKR_OK) {
        SECItem B;
        B.data = param->B.pGX;
        B.len = param->B.ulGXLen;
        K.data = NULL;
        crv = jpake_mapStatus(JPAKE_Final(arena, &pqg.prime, &pqg.subPrime,
                                          &x2, &gx4, &x2s, &B, &K),
                              CKR_MECHANISM_PARAM_INVALID);
    }

    /* Save key material into CKA_VALUE. */
    if (crv == CKR_OK)
        crv = sftk_forceAttribute(key, CKA_VALUE, K.data, K.len);

    if (crv == CKR_OK)
        crv = jpake_enforceKeyType(key, CKK_GENERIC_SECRET);

    PORT_FreeArena(arena, PR_TRUE);
    return crv;
}

Coverage Report

Created: 2024-11-21 07:03

Line	Count	Source (jump to first uncovered line)
1		/* This Source Code Form is subject to the terms of the Mozilla Public
2		* License, v. 2.0. If a copy of the MPL was not distributed with this
3		* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
4
5		#include "seccomon.h"
6		#include "secerr.h"
7		#include "blapi.h"
8		#include "pkcs11i.h"
9		#include "softoken.h"
10
11		static CK_RV
12		jpake_mapStatus(SECStatus rv, CK_RV invalidArgsMapping)
13	0	{
14	0	int err;
15	0	if (rv == SECSuccess)
16	0	return CKR_OK;
17	0	err = PORT_GetError();
18	0	switch (err) {
19		/* XXX: SEC_ERROR_INVALID_ARGS might be caused by invalid template
20		parameters. */
21	0	case SEC_ERROR_INVALID_ARGS:
22	0	return invalidArgsMapping;
23	0	case SEC_ERROR_BAD_SIGNATURE:
24	0	return CKR_SIGNATURE_INVALID;
25	0	case SEC_ERROR_NO_MEMORY:
26	0	return CKR_HOST_MEMORY;
27	0	}
28	0	return CKR_FUNCTION_FAILED;
29	0	}
30
31		/* If key is not NULL then the gx value will be stored as an attribute with
32		the type given by the gxAttrType parameter. */
33		static CK_RV
34		jpake_Sign(PLArenaPool arena, const PQGParams pqg, HASH_HashType hashType,
35		const SECItem signerID, const SECItem x,
36		CK_NSS_JPAKEPublicValue *out)
37	0	{
38	0	SECItem gx, gv, r;
39	0	CK_RV crv;
40
41	0	PORT_Assert(arena != NULL);
42
43	0	gx.data = NULL;
44	0	gv.data = NULL;
45	0	r.data = NULL;
46	0	crv = jpake_mapStatus(JPAKE_Sign(arena, pqg, hashType, signerID, x, NULL,
47	0	NULL, &gx, &gv, &r),
48	0	CKR_MECHANISM_PARAM_INVALID);
49	0	if (crv == CKR_OK) {
50	0	if ((out->pGX != NULL && out->ulGXLen >= gx.len) &&
51	0	(out->pGV != NULL && out->ulGVLen >= gv.len) &&
52	0	(out->pR != NULL && out->ulRLen >= r.len)) {
53	0	PORT_Memcpy(out->pGX, gx.data, gx.len);
54	0	PORT_Memcpy(out->pGV, gv.data, gv.len);
55	0	PORT_Memcpy(out->pR, r.data, r.len);
56	0	out->ulGXLen = gx.len;
57	0	out->ulGVLen = gv.len;
58	0	out->ulRLen = r.len;
59	0	} else {
60	0	crv = CKR_MECHANISM_PARAM_INVALID;
61	0	}
62	0	}
63	0	return crv;
64	0	}
65
66		static CK_RV
67		jpake_Verify(PLArenaPool arena, const PQGParams pqg,
68		HASH_HashType hashType, const SECItem *signerID,
69		const CK_BYTE *peerIDData, CK_ULONG peerIDLen,
70		const CK_NSS_JPAKEPublicValue *publicValueIn)
71	0	{
72	0	SECItem peerID, gx, gv, r;
73	0	peerID.data = (unsigned char *)peerIDData;
74	0	peerID.len = peerIDLen;
75	0	gx.data = publicValueIn->pGX;
76	0	gx.len = publicValueIn->ulGXLen;
77	0	gv.data = publicValueIn->pGV;
78	0	gv.len = publicValueIn->ulGVLen;
79	0	r.data = publicValueIn->pR;
80	0	r.len = publicValueIn->ulRLen;
81	0	return jpake_mapStatus(JPAKE_Verify(arena, pqg, hashType, signerID, &peerID,
82	0	&gx, &gv, &r),
83	0	CKR_MECHANISM_PARAM_INVALID);
84	0	}
85
86	0	#define NUM_ELEM(x) (sizeof(x) / sizeof(x)[0])
87
88		/* If the template has the key type set, ensure that it was set to the correct
89		* value. If the template did not have the key type set, set it to the
90		* correct value.
91		*/
92		static CK_RV
93		jpake_enforceKeyType(SFTKObject *key, CK_KEY_TYPE keyType)
94	0	{
95	0	CK_RV crv;
96	0	SFTKAttribute *keyTypeAttr = sftk_FindAttribute(key, CKA_KEY_TYPE);
97	0	if (keyTypeAttr != NULL) {
98	0	crv = (CK_KEY_TYPE )keyTypeAttr->attrib.pValue == keyType
99	0	? CKR_OK
100	0	: CKR_TEMPLATE_INCONSISTENT;
101	0	sftk_FreeAttribute(keyTypeAttr);
102	0	} else {
103	0	crv = sftk_forceAttribute(key, CKA_KEY_TYPE, &keyType, sizeof keyType);
104	0	}
105	0	return crv;
106	0	}
107
108		static CK_RV
109		jpake_MultipleSecItem2Attribute(SFTKObject key, const SFTKItemTemplate attrs,
110		size_t attrsCount)
111	0	{
112	0	size_t i;
113
114	0	for (i = 0; i < attrsCount; ++i) {
115	0	CK_RV crv = sftk_forceAttribute(key, attrs[i].type, attrs[i].item->data,
116	0	attrs[i].item->len);
117	0	if (crv != CKR_OK)
118	0	return crv;
119	0	}
120	0	return CKR_OK;
121	0	}
122
123		CK_RV
124		jpake_Round1(HASH_HashType hashType, CK_NSS_JPAKERound1Params *params,
125		SFTKObject *key)
126	0	{
127	0	CK_RV crv;
128	0	PQGParams pqg;
129	0	PLArenaPool *arena;
130	0	SECItem signerID;
131	0	SFTKItemTemplate templateAttrs[] = {
132	0	{ CKA_PRIME, &pqg.prime },
133	0	{ CKA_SUBPRIME, &pqg.subPrime },
134	0	{ CKA_BASE, &pqg.base },
135	0	{ CKA_NSS_JPAKE_SIGNERID, &signerID }
136	0	};
137	0	SECItem x2, gx1, gx2;
138	0	const SFTKItemTemplate generatedAttrs[] = {
139	0	{ CKA_NSS_JPAKE_X2, &x2 },
140	0	{ CKA_NSS_JPAKE_GX1, &gx1 },
141	0	{ CKA_NSS_JPAKE_GX2, &gx2 },
142	0	};
143	0	SECItem x1;
144
145	0	PORT_Assert(params != NULL);
146	0	PORT_Assert(key != NULL);
147
148	0	arena = PORT_NewArena(NSS_SOFTOKEN_DEFAULT_CHUNKSIZE);
149	0	if (arena == NULL)
150	0	crv = CKR_HOST_MEMORY;
151
152	0	crv = sftk_MultipleAttribute2SecItem(arena, key, templateAttrs,
153	0	NUM_ELEM(templateAttrs));
154
155	0	if (crv == CKR_OK && (signerID.data == NULL \|\| signerID.len == 0))
156	0	crv = CKR_TEMPLATE_INCOMPLETE;
157
158		/* generate x1, g^x1 and the proof of knowledge of x1 */
159	0	if (crv == CKR_OK) {
160	0	x1.data = NULL;
161	0	crv = jpake_mapStatus(DSA_NewRandom(arena, &pqg.subPrime, &x1),
162	0	CKR_TEMPLATE_INCONSISTENT);
163	0	}
164	0	if (crv == CKR_OK)
165	0	crv = jpake_Sign(arena, &pqg, hashType, &signerID, &x1, &params->gx1);
166
167		/* generate x2, g^x2 and the proof of knowledge of x2 */
168	0	if (crv == CKR_OK) {
169	0	x2.data = NULL;
170	0	crv = jpake_mapStatus(DSA_NewRandom(arena, &pqg.subPrime, &x2),
171	0	CKR_TEMPLATE_INCONSISTENT);
172	0	}
173	0	if (crv == CKR_OK)
174	0	crv = jpake_Sign(arena, &pqg, hashType, &signerID, &x2, &params->gx2);
175
176		/* Save the values needed for round 2 into CKA_VALUE */
177	0	if (crv == CKR_OK) {
178	0	gx1.data = params->gx1.pGX;
179	0	gx1.len = params->gx1.ulGXLen;
180	0	gx2.data = params->gx2.pGX;
181	0	gx2.len = params->gx2.ulGXLen;
182	0	crv = jpake_MultipleSecItem2Attribute(key, generatedAttrs,
183	0	NUM_ELEM(generatedAttrs));
184	0	}
185
186	0	PORT_FreeArena(arena, PR_TRUE);
187	0	return crv;
188	0	}
189
190		CK_RV
191		jpake_Round2(HASH_HashType hashType, CK_NSS_JPAKERound2Params *params,
192		SFTKObject sourceKey, SFTKObject key)
193	0	{
194	0	CK_RV crv;
195	0	PLArenaPool *arena;
196	0	PQGParams pqg;
197	0	SECItem signerID, x2, gx1, gx2;
198	0	SFTKItemTemplate sourceAttrs[] = {
199	0	{ CKA_PRIME, &pqg.prime },
200	0	{ CKA_SUBPRIME, &pqg.subPrime },
201	0	{ CKA_BASE, &pqg.base },
202	0	{ CKA_NSS_JPAKE_SIGNERID, &signerID },
203	0	{ CKA_NSS_JPAKE_X2, &x2 },
204	0	{ CKA_NSS_JPAKE_GX1, &gx1 },
205	0	{ CKA_NSS_JPAKE_GX2, &gx2 },
206	0	};
207	0	SECItem x2s, gx3, gx4;
208	0	const SFTKItemTemplate copiedAndGeneratedAttrs[] = {
209	0	{ CKA_NSS_JPAKE_SIGNERID, &signerID },
210	0	{ CKA_PRIME, &pqg.prime },
211	0	{ CKA_SUBPRIME, &pqg.subPrime },
212	0	{ CKA_NSS_JPAKE_X2, &x2 },
213	0	{ CKA_NSS_JPAKE_X2S, &x2s },
214	0	{ CKA_NSS_JPAKE_GX1, &gx1 },
215	0	{ CKA_NSS_JPAKE_GX2, &gx2 },
216	0	{ CKA_NSS_JPAKE_GX3, &gx3 },
217	0	{ CKA_NSS_JPAKE_GX4, &gx4 }
218	0	};
219	0	SECItem peerID;
220
221	0	PORT_Assert(params != NULL);
222	0	PORT_Assert(sourceKey != NULL);
223	0	PORT_Assert(key != NULL);
224
225	0	arena = PORT_NewArena(NSS_SOFTOKEN_DEFAULT_CHUNKSIZE);
226	0	if (arena == NULL)
227	0	crv = CKR_HOST_MEMORY;
228
229		/* TODO: check CKK_NSS_JPAKE_ROUND1 */
230
231	0	crv = sftk_MultipleAttribute2SecItem(arena, sourceKey, sourceAttrs,
232	0	NUM_ELEM(sourceAttrs));
233
234		/* Get the peer's ID out of the template and sanity-check it. */
235	0	if (crv == CKR_OK)
236	0	crv = sftk_Attribute2SecItem(arena, &peerID, key,
237	0	CKA_NSS_JPAKE_PEERID);
238	0	if (crv == CKR_OK && (peerID.data == NULL \|\| peerID.len == 0))
239	0	crv = CKR_TEMPLATE_INCOMPLETE;
240	0	if (crv == CKR_OK && SECITEM_CompareItem(&signerID, &peerID) == SECEqual)
241	0	crv = CKR_TEMPLATE_INCONSISTENT;
242
243		/* Verify zero-knowledge proofs for g^x3 and g^x4 */
244	0	if (crv == CKR_OK)
245	0	crv = jpake_Verify(arena, &pqg, hashType, &signerID,
246	0	peerID.data, peerID.len, &params->gx3);
247	0	if (crv == CKR_OK)
248	0	crv = jpake_Verify(arena, &pqg, hashType, &signerID,
249	0	peerID.data, peerID.len, &params->gx4);
250
251		/* Calculate the base and x2s for A=base^x2s */
252	0	if (crv == CKR_OK) {
253	0	SECItem s;
254	0	s.data = params->pSharedKey;
255	0	s.len = params->ulSharedKeyLen;
256	0	gx3.data = params->gx3.pGX;
257	0	gx3.len = params->gx3.ulGXLen;
258	0	gx4.data = params->gx4.pGX;
259	0	gx4.len = params->gx4.ulGXLen;
260	0	pqg.base.data = NULL;
261	0	x2s.data = NULL;
262	0	crv = jpake_mapStatus(JPAKE_Round2(arena, &pqg.prime, &pqg.subPrime,
263	0	&gx1, &gx3, &gx4, &pqg.base,
264	0	&x2, &s, &x2s),
265	0	CKR_MECHANISM_PARAM_INVALID);
266	0	}
267
268		/* Generate A=base^x2s and its zero-knowledge proof. */
269	0	if (crv == CKR_OK)
270	0	crv = jpake_Sign(arena, &pqg, hashType, &signerID, &x2s, &params->A);
271
272		/* Copy P and Q from the ROUND1 key to the ROUND2 key and save the values
273		needed for the final key material derivation into CKA_VALUE. */
274	0	if (crv == CKR_OK)
275	0	crv = sftk_forceAttribute(key, CKA_PRIME, pqg.prime.data,
276	0	pqg.prime.len);
277	0	if (crv == CKR_OK)
278	0	crv = sftk_forceAttribute(key, CKA_SUBPRIME, pqg.subPrime.data,
279	0	pqg.subPrime.len);
280	0	if (crv == CKR_OK) {
281	0	crv = jpake_MultipleSecItem2Attribute(key, copiedAndGeneratedAttrs,
282	0	NUM_ELEM(copiedAndGeneratedAttrs));
283	0	}
284
285	0	if (crv == CKR_OK)
286	0	crv = jpake_enforceKeyType(key, CKK_NSS_JPAKE_ROUND2);
287
288	0	PORT_FreeArena(arena, PR_TRUE);
289	0	return crv;
290	0	}
291
292		CK_RV
293		jpake_Final(HASH_HashType hashType, const CK_NSS_JPAKEFinalParams *param,
294		SFTKObject sourceKey, SFTKObject key)
295	0	{
296	0	PLArenaPool *arena;
297	0	SECItem K;
298	0	PQGParams pqg;
299	0	CK_RV crv;
300	0	SECItem peerID, signerID, x2s, x2, gx1, gx2, gx3, gx4;
301	0	SFTKItemTemplate sourceAttrs[] = {
302	0	{ CKA_NSS_JPAKE_PEERID, &peerID },
303	0	{ CKA_NSS_JPAKE_SIGNERID, &signerID },
304	0	{ CKA_PRIME, &pqg.prime },
305	0	{ CKA_SUBPRIME, &pqg.subPrime },
306	0	{ CKA_NSS_JPAKE_X2, &x2 },
307	0	{ CKA_NSS_JPAKE_X2S, &x2s },
308	0	{ CKA_NSS_JPAKE_GX1, &gx1 },
309	0	{ CKA_NSS_JPAKE_GX2, &gx2 },
310	0	{ CKA_NSS_JPAKE_GX3, &gx3 },
311	0	{ CKA_NSS_JPAKE_GX4, &gx4 }
312	0	};
313
314	0	PORT_Assert(param != NULL);
315	0	PORT_Assert(sourceKey != NULL);
316	0	PORT_Assert(key != NULL);
317
318	0	arena = PORT_NewArena(NSS_SOFTOKEN_DEFAULT_CHUNKSIZE);
319	0	if (arena == NULL)
320	0	crv = CKR_HOST_MEMORY;
321
322		/* TODO: verify key type CKK_NSS_JPAKE_ROUND2 */
323
324	0	crv = sftk_MultipleAttribute2SecItem(arena, sourceKey, sourceAttrs,
325	0	NUM_ELEM(sourceAttrs));
326
327		/* Calculate base for B=base^x4s */
328	0	if (crv == CKR_OK) {
329	0	pqg.base.data = NULL;
330	0	crv = jpake_mapStatus(JPAKE_Round2(arena, &pqg.prime, &pqg.subPrime,
331	0	&gx1, &gx2, &gx3, &pqg.base,
332	0	NULL, NULL, NULL),
333	0	CKR_MECHANISM_PARAM_INVALID);
334	0	}
335
336		/* Verify zero-knowledge proof for B */
337	0	if (crv == CKR_OK)
338	0	crv = jpake_Verify(arena, &pqg, hashType, &signerID,
339	0	peerID.data, peerID.len, &param->B);
340	0	if (crv == CKR_OK) {
341	0	SECItem B;
342	0	B.data = param->B.pGX;
343	0	B.len = param->B.ulGXLen;
344	0	K.data = NULL;
345	0	crv = jpake_mapStatus(JPAKE_Final(arena, &pqg.prime, &pqg.subPrime,
346	0	&x2, &gx4, &x2s, &B, &K),
347	0	CKR_MECHANISM_PARAM_INVALID);
348	0	}
349
350		/* Save key material into CKA_VALUE. */
351	0	if (crv == CKR_OK)
352	0	crv = sftk_forceAttribute(key, CKA_VALUE, K.data, K.len);
353
354	0	if (crv == CKR_OK)
355	0	crv = jpake_enforceKeyType(key, CKK_GENERIC_SECRET);
356
357	0	PORT_FreeArena(arena, PR_TRUE);
358	0	return crv;
359	0	}