/src/cryptofuzz/modules/wolfcrypt/ecdsa_25519.cpp

Source (jump to first uncovered line)
#include "ecdsa_25519.h"
#include "module_internal.h"
#include "shared.h"
#include "bn_ops.h"
#include <cryptofuzz/util.h>

extern "C" {
#include <wolfssl/options.h>
#include <wolfssl/wolfcrypt/curve25519.h>
#include <wolfssl/wolfcrypt/ed25519.h>
}

namespace cryptofuzz {
namespace module {
namespace wolfCrypt_detail {

#if defined(CRYPTOFUZZ_WOLFCRYPT_ALLOCATION_FAILURES)
    extern bool haveAllocFailure;
#endif

static bool ed25519LoadPrivateKey(ed25519_key& key, component::Bignum priv, Datasource& ds) {
    bool ret = false;

    uint8_t priv_bytes[ED25519_KEY_SIZE];

    CF_CHECK_EQ(wolfCrypt_bignum::Bignum::ToBin(ds, priv, priv_bytes, sizeof(priv_bytes)), true);
    CF_CHECK_EQ(wc_ed25519_import_private_only(priv_bytes, sizeof(priv_bytes), &key), 0);

    ret = true;
end:
    return ret;
}

static bool ed25519LoadPublicKey(ed25519_key& key, component::Bignum pub, Datasource& ds, const bool mustSucceed = false) {
    bool ret = false;

    uint8_t pub_bytes[ED25519_PUB_KEY_SIZE];
    CF_CHECK_EQ(wolfCrypt_bignum::Bignum::ToBin(ds, pub, pub_bytes, sizeof(pub_bytes), mustSucceed), true);
    CF_CHECK_EQ(wc_ed25519_import_public(pub_bytes, sizeof(pub_bytes), &key), 0);

    ret = true;
end:
    return ret;
}

static std::optional<std::vector<uint8_t>> ed25519GetPublicKeyAsVector(ed25519_key& key) {
    std::optional<std::vector<uint8_t>> ret = std::nullopt;
    uint8_t pub_bytes[ED25519_PUB_KEY_SIZE];

    WC_CHECK_EQ(wc_ed25519_make_public(&key, pub_bytes, sizeof(pub_bytes)), MP_OKAY);

    ret = std::vector<uint8_t>(pub_bytes, pub_bytes + sizeof(pub_bytes));
end:
    return ret;
}

static std::optional<component::ECC_PublicKey> ed25519GetPublicKey(ed25519_key& key, Datasource& ds) {
    std::optional<component::ECC_PublicKey> ret = std::nullopt;
    std::optional<std::vector<uint8_t>> pubv = std::nullopt;
    std::optional<component::Bignum> pub = std::nullopt;

    CF_CHECK_NE(pubv = ed25519GetPublicKeyAsVector(key), std::nullopt);
    CF_CHECK_NE(pub = wolfCrypt_bignum::Bignum::BinToBignum(ds, pubv->data(), pubv->size()), std::nullopt);

    ret = {pub->ToString(), "0"};

end:
    return ret;
}

static bool ed25519DerivePublicKey(ed25519_key& key) {
    std::optional<std::vector<uint8_t>> pubv = std::nullopt;
    bool ret = false;

    CF_CHECK_NE(pubv = ed25519GetPublicKeyAsVector(key), std::nullopt);
    memcpy(key.p, pubv->data(), ED25519_PUB_KEY_SIZE);
    key.pubKeySet = 1;

    ret = true;

end:
    return ret;
}

std::optional<component::ECC_PublicKey> OpECC_PrivateToPublic_Curve25519(operation::ECC_PrivateToPublic& op) {
    std::optional<component::ECC_PublicKey> ret = std::nullopt;
    Datasource ds(op.modifier.GetPtr(), op.modifier.GetSize());
    wolfCrypt_detail::SetGlobalDs(&ds);

    wolfCrypt_bignum::Bignum priv(ds), pub(ds);
    uint8_t pub_bytes[CURVE25519_KEYSIZE];
    uint8_t priv_bytes[CURVE25519_KEYSIZE];

    /* Load private key */
    {
        CF_CHECK_EQ(priv.Set(op.priv.ToString(ds)), true);
        CF_CHECK_TRUE(priv.ToBin(priv_bytes, sizeof(priv_bytes)));
        priv_bytes[0] &= 248;
        priv_bytes[31] &= 127;
        priv_bytes[31] |= 64;
    }

    /* Convert to public key */
    {
        WC_CHECK_EQ(wc_curve25519_make_pub(sizeof(pub_bytes), pub_bytes, sizeof(priv_bytes), priv_bytes), MP_OKAY);
    }

    /* Convert public key */
    {
        std::optional<std::string> pub_x_str;
        CF_CHECK_EQ(mp_read_unsigned_bin(pub.GetPtr(), pub_bytes, sizeof(pub_bytes)), MP_OKAY);
        CF_CHECK_NE(pub_x_str = pub.ToDecString(), std::nullopt);
        ret = { *pub_x_str, "0" };
    }

end:
    wolfCrypt_detail::UnsetGlobalDs();
    return ret;
}

std::optional<component::ECC_PublicKey> OpECC_PrivateToPublic_Ed25519(operation::ECC_PrivateToPublic& op) {
    std::optional<component::ECC_PublicKey> ret = std::nullopt;
    Datasource ds(op.modifier.GetPtr(), op.modifier.GetSize());
    wolfCrypt_detail::SetGlobalDs(&ds);

    wolfCrypt_bignum::Bignum priv(ds), pub(ds);

    ed25519_key key;
    bool e25519_key_inited = false;

    WC_CHECK_EQ(wc_ed25519_init(&key), 0);
    e25519_key_inited = true;

    CF_CHECK_EQ(ed25519LoadPrivateKey(key, op.priv, ds), true);
    ret = ed25519GetPublicKey(key, ds);

end:
    if ( e25519_key_inited == true ) {
        wc_ed25519_free(&key);
    }

    wolfCrypt_detail::UnsetGlobalDs();
    return ret;
}

std::optional<bool> OpECC_ValidatePubkey_Curve25519(operation::ECC_ValidatePubkey& op) {
    std::optional<bool> ret = std::nullopt;
    Datasource ds(op.modifier.GetPtr(), op.modifier.GetSize());
    wolfCrypt_detail::SetGlobalDs(&ds);

    wolfCrypt_bignum::Bignum pub(ds);
    uint8_t pub_bytes[CURVE25519_KEYSIZE];

    CF_CHECK_EQ(pub.Set(op.pub.first.ToString(ds)), true);
    CF_CHECK_TRUE(pub.ToBin(pub_bytes, sizeof(pub_bytes)));

    haveAllocFailure = false;
    ret = wc_curve25519_check_public(pub_bytes, sizeof(pub_bytes), EC25519_BIG_ENDIAN) == 0;
    if ( *ret == false && haveAllocFailure == true ) {
        ret = std::nullopt;
    }

end:

    wolfCrypt_detail::UnsetGlobalDs();
    return ret;
}

std::optional<bool> OpECC_ValidatePubkey_Ed25519(operation::ECC_ValidatePubkey& op) {
    std::optional<bool> ret = std::nullopt;
    Datasource ds(op.modifier.GetPtr(), op.modifier.GetSize());
    wolfCrypt_detail::SetGlobalDs(&ds);

    ed25519_key key;
    bool e25519_key_inited = false;

    WC_CHECK_EQ(wc_ed25519_init(&key), 0);
    e25519_key_inited = true;

    CF_CHECK_EQ(ed25519LoadPublicKey(key, op.pub.first, ds), true);

    haveAllocFailure = false;
    ret = wc_ed25519_check_key(&key) == 0;
    if ( *ret == false && haveAllocFailure == true ) {
        ret = std::nullopt;
    }

end:
    if ( e25519_key_inited == true ) {
        wc_ed25519_free(&key);
    }

    wolfCrypt_detail::UnsetGlobalDs();
    return ret;
}

std::optional<component::ECDSA_Signature> OpECDSA_Sign_ed25519(operation::ECDSA_Sign& op) {
    std::optional<component::ECDSA_Signature> ret = std::nullopt;
    Datasource ds(op.modifier.GetPtr(), op.modifier.GetSize());
    wolfCrypt_detail::SetGlobalDs(&ds);

    ed25519_key key;
    bool e25519_key_inited = false;
    uint8_t sig[ED25519_SIG_SIZE];
    word32 sigSz = sizeof(sig);

    WC_CHECK_EQ(wc_ed25519_init(&key), 0);
    e25519_key_inited = true;

    CF_CHECK_EQ(wolfCrypt_detail::ed25519LoadPrivateKey(key, op.priv, ds), true);
    CF_CHECK_EQ(wolfCrypt_detail::ed25519DerivePublicKey(key), true);

    /* Sign message */
    WC_CHECK_EQ(wc_ed25519_sign_msg(op.cleartext.GetPtr(), op.cleartext.GetSize(), sig, &sigSz, &key), MP_OKAY);
    CF_CHECK_EQ(sigSz, ED25519_SIG_SIZE);
    static_assert(ED25519_SIG_SIZE % 2 == 0);

    {
        std::optional<component::BignumPair> ret_sig;
        std::optional<component::BignumPair> ret_pub;

        CF_CHECK_NE(ret_sig = wolfCrypt_bignum::Bignum::BinToBignumPair(ds, sig, ED25519_SIG_SIZE), std::nullopt);
        CF_CHECK_NE(ret_pub = wolfCrypt_detail::ed25519GetPublicKey(key, ds), std::nullopt);

        ret = component::ECDSA_Signature(*ret_sig, *ret_pub);
    }

end:
    if ( e25519_key_inited == true ) {
        wc_ed25519_free(&key);
    }

    wolfCrypt_detail::UnsetGlobalDs();
    return ret;
}

std::optional<bool> OpECDSA_Verify_ed25519(operation::ECDSA_Verify& op) {
    std::optional<bool> ret = std::nullopt;
    Datasource ds(op.modifier.GetPtr(), op.modifier.GetSize());
    wolfCrypt_detail::SetGlobalDs(&ds);

    ed25519_key key;
    bool e25519_key_inited = false;
    uint8_t ed25519sig[ED25519_SIG_SIZE];
    int verify;
    bool oneShot = true;
    bool haveEmptyPart = false;

    haveAllocFailure = false;
    ret = false;

    WC_CHECK_EQ(wc_ed25519_init(&key), 0);
    e25519_key_inited = true;

    CF_CHECK_EQ(ed25519LoadPublicKey(key, op.signature.pub.first, ds, true), true);
    CF_CHECK_EQ(wolfCrypt_bignum::Bignum::ToBin(ds, op.signature.signature, ed25519sig, sizeof(ed25519sig), true), true);

#if defined(WOLFSSL_ED25519_STREAMING_VERIFY)
    try { oneShot = ds.Get<bool>(); } catch ( ... ) { }
#endif

    if ( oneShot == true ) {
        WC_CHECK_EQ(wc_ed25519_verify_msg(ed25519sig, sizeof(ed25519sig), op.cleartext.GetPtr(), op.cleartext.GetSize(), &verify, &key), 0);
    } else {
#if !defined(WOLFSSL_ED25519_STREAMING_VERIFY)
        CF_UNREACHABLE();
#else
        const auto parts = util::ToParts(ds, op.cleartext);

        WC_CHECK_EQ(wc_ed25519_verify_msg_init(ed25519sig, sizeof(ed25519sig), &key, (byte)Ed25519, nullptr, 0), 0);

        for (const auto& part : parts) {
            if ( part.second == 0 ) {
                haveEmptyPart = true;
            }
            WC_CHECK_EQ(wc_ed25519_verify_msg_update(part.first, part.second, &key), 0);
        }

        WC_CHECK_EQ(wc_ed25519_verify_msg_final(ed25519sig, sizeof(ed25519sig), &verify, &key), 0);
#endif
    }

    ret = verify ? true : false;

end:
    if ( e25519_key_inited == true ) {
        wc_ed25519_free(&key);
    }

    wolfCrypt_detail::UnsetGlobalDs();

    if ( ret && *ret == false ) {
        if ( haveAllocFailure ) {
            ret = std::nullopt;
        } else if ( haveEmptyPart ) {
            ret = std::nullopt;
        } else if ( op.cleartext.IsZero() ) {
            ret = std::nullopt;
        }

    }
    return ret;
}

} /* namespace wolfCrypt_detail */
} /* namespace module */
} /* namespace cryptofuzz */

Coverage Report

Created: 2024-06-28 06:19

Line	Count	Source (jump to first uncovered line)
1		#include "ecdsa_25519.h"
2		#include "module_internal.h"
3		#include "shared.h"
4		#include "bn_ops.h"
5		#include <cryptofuzz/util.h>
6
7		extern "C" {
8		#include <wolfssl/options.h>
9		#include <wolfssl/wolfcrypt/curve25519.h>
10		#include <wolfssl/wolfcrypt/ed25519.h>
11		}
12
13		namespace cryptofuzz {
14		namespace module {
15		namespace wolfCrypt_detail {
16
17		#if defined(CRYPTOFUZZ_WOLFCRYPT_ALLOCATION_FAILURES)
18		extern bool haveAllocFailure;
19		#endif
20
21	0	static bool ed25519LoadPrivateKey(ed25519_key& key, component::Bignum priv, Datasource& ds) {
22	0	bool ret = false;
23
24	0	uint8_t priv_bytes[ED25519_KEY_SIZE];
25
26	0	CF_CHECK_EQ(wolfCrypt_bignum::Bignum::ToBin(ds, priv, priv_bytes, sizeof(priv_bytes)), true);
27	0	CF_CHECK_EQ(wc_ed25519_import_private_only(priv_bytes, sizeof(priv_bytes), &key), 0);
28
29	0	ret = true;
30	0	end:
31	0	return ret;
32	0	}
33
34	0	static bool ed25519LoadPublicKey(ed25519_key& key, component::Bignum pub, Datasource& ds, const bool mustSucceed = false) {
35	0	bool ret = false;
36
37	0	uint8_t pub_bytes[ED25519_PUB_KEY_SIZE];
38	0	CF_CHECK_EQ(wolfCrypt_bignum::Bignum::ToBin(ds, pub, pub_bytes, sizeof(pub_bytes), mustSucceed), true);
39	0	CF_CHECK_EQ(wc_ed25519_import_public(pub_bytes, sizeof(pub_bytes), &key), 0);
40
41	0	ret = true;
42	0	end:
43	0	return ret;
44	0	}
45
46	0	static std::optional<std::vector<uint8_t>> ed25519GetPublicKeyAsVector(ed25519_key& key) {
47	0	std::optional<std::vector<uint8_t>> ret = std::nullopt;
48	0	uint8_t pub_bytes[ED25519_PUB_KEY_SIZE];
49
50	0	WC_CHECK_EQ(wc_ed25519_make_public(&key, pub_bytes, sizeof(pub_bytes)), MP_OKAY);
51
52	0	ret = std::vector<uint8_t>(pub_bytes, pub_bytes + sizeof(pub_bytes));
53	0	end:
54	0	return ret;
55	0	}
56
57	0	static std::optional<component::ECC_PublicKey> ed25519GetPublicKey(ed25519_key& key, Datasource& ds) {
58	0	std::optional<component::ECC_PublicKey> ret = std::nullopt;
59	0	std::optional<std::vector<uint8_t>> pubv = std::nullopt;
60	0	std::optional<component::Bignum> pub = std::nullopt;
61
62	0	CF_CHECK_NE(pubv = ed25519GetPublicKeyAsVector(key), std::nullopt);
63	0	CF_CHECK_NE(pub = wolfCrypt_bignum::Bignum::BinToBignum(ds, pubv->data(), pubv->size()), std::nullopt);
64
65	0	ret = {pub->ToString(), "0"};
66
67	0	end:
68	0	return ret;
69	0	}
70
71	0	static bool ed25519DerivePublicKey(ed25519_key& key) {
72	0	std::optional<std::vector<uint8_t>> pubv = std::nullopt;
73	0	bool ret = false;
74
75	0	CF_CHECK_NE(pubv = ed25519GetPublicKeyAsVector(key), std::nullopt);
76	0	memcpy(key.p, pubv->data(), ED25519_PUB_KEY_SIZE);
77	0	key.pubKeySet = 1;
78
79	0	ret = true;
80
81	0	end:
82	0	return ret;
83	0	}
84
85	0	std::optional<component::ECC_PublicKey> OpECC_PrivateToPublic_Curve25519(operation::ECC_PrivateToPublic& op) {
86	0	std::optional<component::ECC_PublicKey> ret = std::nullopt;
87	0	Datasource ds(op.modifier.GetPtr(), op.modifier.GetSize());
88	0	wolfCrypt_detail::SetGlobalDs(&ds);
89
90	0	wolfCrypt_bignum::Bignum priv(ds), pub(ds);
91	0	uint8_t pub_bytes[CURVE25519_KEYSIZE];
92	0	uint8_t priv_bytes[CURVE25519_KEYSIZE];
93
94		/* Load private key */
95	0	{
96	0	CF_CHECK_EQ(priv.Set(op.priv.ToString(ds)), true);
97	0	CF_CHECK_TRUE(priv.ToBin(priv_bytes, sizeof(priv_bytes)));
98	0	priv_bytes[0] &= 248;
99	0	priv_bytes[31] &= 127;
100	0	priv_bytes[31] \|= 64;
101	0	}
102
103		/* Convert to public key */
104	0	{
105	0	WC_CHECK_EQ(wc_curve25519_make_pub(sizeof(pub_bytes), pub_bytes, sizeof(priv_bytes), priv_bytes), MP_OKAY);
106	0	}
107
108		/* Convert public key */
109	0	{
110	0	std::optional<std::string> pub_x_str;
111	0	CF_CHECK_EQ(mp_read_unsigned_bin(pub.GetPtr(), pub_bytes, sizeof(pub_bytes)), MP_OKAY);
112	0	CF_CHECK_NE(pub_x_str = pub.ToDecString(), std::nullopt);
113	0	ret = { *pub_x_str, "0" };
114	0	}
115
116	0	end:
117	0	wolfCrypt_detail::UnsetGlobalDs();
118	0	return ret;
119	0	}
120
121	0	std::optional<component::ECC_PublicKey> OpECC_PrivateToPublic_Ed25519(operation::ECC_PrivateToPublic& op) {
122	0	std::optional<component::ECC_PublicKey> ret = std::nullopt;
123	0	Datasource ds(op.modifier.GetPtr(), op.modifier.GetSize());
124	0	wolfCrypt_detail::SetGlobalDs(&ds);
125
126	0	wolfCrypt_bignum::Bignum priv(ds), pub(ds);
127
128	0	ed25519_key key;
129	0	bool e25519_key_inited = false;
130
131	0	WC_CHECK_EQ(wc_ed25519_init(&key), 0);
132	0	e25519_key_inited = true;
133
134	0	CF_CHECK_EQ(ed25519LoadPrivateKey(key, op.priv, ds), true);
135	0	ret = ed25519GetPublicKey(key, ds);
136
137	0	end:
138	0	if ( e25519_key_inited == true ) {
139	0	wc_ed25519_free(&key);
140	0	}
141
142	0	wolfCrypt_detail::UnsetGlobalDs();
143	0	return ret;
144	0	}
145
146	0	std::optional<bool> OpECC_ValidatePubkey_Curve25519(operation::ECC_ValidatePubkey& op) {
147	0	std::optional<bool> ret = std::nullopt;
148	0	Datasource ds(op.modifier.GetPtr(), op.modifier.GetSize());
149	0	wolfCrypt_detail::SetGlobalDs(&ds);
150
151	0	wolfCrypt_bignum::Bignum pub(ds);
152	0	uint8_t pub_bytes[CURVE25519_KEYSIZE];
153
154	0	CF_CHECK_EQ(pub.Set(op.pub.first.ToString(ds)), true);
155	0	CF_CHECK_TRUE(pub.ToBin(pub_bytes, sizeof(pub_bytes)));
156
157	0	haveAllocFailure = false;
158	0	ret = wc_curve25519_check_public(pub_bytes, sizeof(pub_bytes), EC25519_BIG_ENDIAN) == 0;
159	0	if ( *ret == false && haveAllocFailure == true ) {
160	0	ret = std::nullopt;
161	0	}
162
163	0	end:
164
165	0	wolfCrypt_detail::UnsetGlobalDs();
166	0	return ret;
167	0	}
168
169	0	std::optional<bool> OpECC_ValidatePubkey_Ed25519(operation::ECC_ValidatePubkey& op) {
170	0	std::optional<bool> ret = std::nullopt;
171	0	Datasource ds(op.modifier.GetPtr(), op.modifier.GetSize());
172	0	wolfCrypt_detail::SetGlobalDs(&ds);
173
174	0	ed25519_key key;
175	0	bool e25519_key_inited = false;
176
177	0	WC_CHECK_EQ(wc_ed25519_init(&key), 0);
178	0	e25519_key_inited = true;
179
180	0	CF_CHECK_EQ(ed25519LoadPublicKey(key, op.pub.first, ds), true);
181
182	0	haveAllocFailure = false;
183	0	ret = wc_ed25519_check_key(&key) == 0;
184	0	if ( *ret == false && haveAllocFailure == true ) {
185	0	ret = std::nullopt;
186	0	}
187
188	0	end:
189	0	if ( e25519_key_inited == true ) {
190	0	wc_ed25519_free(&key);
191	0	}
192
193	0	wolfCrypt_detail::UnsetGlobalDs();
194	0	return ret;
195	0	}
196
197	0	std::optional<component::ECDSA_Signature> OpECDSA_Sign_ed25519(operation::ECDSA_Sign& op) {
198	0	std::optional<component::ECDSA_Signature> ret = std::nullopt;
199	0	Datasource ds(op.modifier.GetPtr(), op.modifier.GetSize());
200	0	wolfCrypt_detail::SetGlobalDs(&ds);
201
202	0	ed25519_key key;
203	0	bool e25519_key_inited = false;
204	0	uint8_t sig[ED25519_SIG_SIZE];
205	0	word32 sigSz = sizeof(sig);
206
207	0	WC_CHECK_EQ(wc_ed25519_init(&key), 0);
208	0	e25519_key_inited = true;
209
210	0	CF_CHECK_EQ(wolfCrypt_detail::ed25519LoadPrivateKey(key, op.priv, ds), true);
211	0	CF_CHECK_EQ(wolfCrypt_detail::ed25519DerivePublicKey(key), true);
212
213		/* Sign message */
214	0	WC_CHECK_EQ(wc_ed25519_sign_msg(op.cleartext.GetPtr(), op.cleartext.GetSize(), sig, &sigSz, &key), MP_OKAY);
215	0	CF_CHECK_EQ(sigSz, ED25519_SIG_SIZE);
216	0	static_assert(ED25519_SIG_SIZE % 2 == 0);
217
218	0	{
219	0	std::optional<component::BignumPair> ret_sig;
220	0	std::optional<component::BignumPair> ret_pub;
221
222	0	CF_CHECK_NE(ret_sig = wolfCrypt_bignum::Bignum::BinToBignumPair(ds, sig, ED25519_SIG_SIZE), std::nullopt);
223	0	CF_CHECK_NE(ret_pub = wolfCrypt_detail::ed25519GetPublicKey(key, ds), std::nullopt);
224
225	0	ret = component::ECDSA_Signature(ret_sig, ret_pub);
226	0	}
227
228	0	end:
229	0	if ( e25519_key_inited == true ) {
230	0	wc_ed25519_free(&key);
231	0	}
232
233	0	wolfCrypt_detail::UnsetGlobalDs();
234	0	return ret;
235	0	}
236
237	0	std::optional<bool> OpECDSA_Verify_ed25519(operation::ECDSA_Verify& op) {
238	0	std::optional<bool> ret = std::nullopt;
239	0	Datasource ds(op.modifier.GetPtr(), op.modifier.GetSize());
240	0	wolfCrypt_detail::SetGlobalDs(&ds);
241
242	0	ed25519_key key;
243	0	bool e25519_key_inited = false;
244	0	uint8_t ed25519sig[ED25519_SIG_SIZE];
245	0	int verify;
246	0	bool oneShot = true;
247	0	bool haveEmptyPart = false;
248
249	0	haveAllocFailure = false;
250	0	ret = false;
251
252	0	WC_CHECK_EQ(wc_ed25519_init(&key), 0);
253	0	e25519_key_inited = true;
254
255	0	CF_CHECK_EQ(ed25519LoadPublicKey(key, op.signature.pub.first, ds, true), true);
256	0	CF_CHECK_EQ(wolfCrypt_bignum::Bignum::ToBin(ds, op.signature.signature, ed25519sig, sizeof(ed25519sig), true), true);
257
258	0	#if defined(WOLFSSL_ED25519_STREAMING_VERIFY)
259	0	try { oneShot = ds.Get<bool>(); } catch ( ... ) { }
260	0	#endif
261
262	0	if ( oneShot == true ) {
263	0	WC_CHECK_EQ(wc_ed25519_verify_msg(ed25519sig, sizeof(ed25519sig), op.cleartext.GetPtr(), op.cleartext.GetSize(), &verify, &key), 0);
264	0	} else {
265		#if !defined(WOLFSSL_ED25519_STREAMING_VERIFY)
266		CF_UNREACHABLE();
267		#else
268	0	const auto parts = util::ToParts(ds, op.cleartext);
269
270	0	WC_CHECK_EQ(wc_ed25519_verify_msg_init(ed25519sig, sizeof(ed25519sig), &key, (byte)Ed25519, nullptr, 0), 0);
271
272	0	for (const auto& part : parts) {
273	0	if ( part.second == 0 ) {
274	0	haveEmptyPart = true;
275	0	}
276	0	WC_CHECK_EQ(wc_ed25519_verify_msg_update(part.first, part.second, &key), 0);
277	0	}
278
279	0	WC_CHECK_EQ(wc_ed25519_verify_msg_final(ed25519sig, sizeof(ed25519sig), &verify, &key), 0);
280	0	#endif
281	0	}
282
283	0	ret = verify ? true : false;
284
285	0	end:
286	0	if ( e25519_key_inited == true ) {
287	0	wc_ed25519_free(&key);
288	0	}
289
290	0	wolfCrypt_detail::UnsetGlobalDs();
291
292	0	if ( ret && *ret == false ) {
293	0	if ( haveAllocFailure ) {
294	0	ret = std::nullopt;
295	0	} else if ( haveEmptyPart ) {
296	0	ret = std::nullopt;
297	0	} else if ( op.cleartext.IsZero() ) {
298	0	ret = std::nullopt;
299	0	}
300
301	0	}
302	0	return ret;
303	0	}
304
305		} /* namespace wolfCrypt_detail */
306		} /* namespace module */
307		} /* namespace cryptofuzz */