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crypto: hmac: introduce qcrypto_hmac_ctx_new for nettle-backend

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Extracts qcrypto_hmac_ctx_new() from qcrypto_hmac_new() for
nettle-backend impls.

Reviewed-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Longpeng(Mike) <longpeng2@huawei.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
This commit is contained in:
Longpeng(Mike) 2017-07-14 14:04:02 -04:00 committed by Daniel P. Berrange
parent 822d15ded8
commit 8c2776d86c
1 changed files with 24 additions and 10 deletions
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34
crypto/hmac-nettle.c
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@ -97,11 +97,11 @@ bool qcrypto_hmac_supports(QCryptoHashAlgorithm alg)
return false; return false;
} }
QCryptoHmac *qcrypto_hmac_new(QCryptoHashAlgorithm alg, static QCryptoHmacNettle *
const uint8_t *key, size_t nkey, qcrypto_hmac_ctx_new(QCryptoHashAlgorithm alg,
Error **errp) const uint8_t *key, size_t nkey,
Error **errp)
{ {
QCryptoHmac *hmac;
QCryptoHmacNettle *ctx; QCryptoHmacNettle *ctx;
if (!qcrypto_hmac_supports(alg)) { if (!qcrypto_hmac_supports(alg)) {
@ -110,16 +110,11 @@ QCryptoHmac *qcrypto_hmac_new(QCryptoHashAlgorithm alg,
return NULL; return NULL;
} }
hmac = g_new0(QCryptoHmac, 1);
hmac->alg = alg;
ctx = g_new0(QCryptoHmacNettle, 1); ctx = g_new0(QCryptoHmacNettle, 1);
qcrypto_hmac_alg_map[alg].setkey(&ctx->u, nkey, key); qcrypto_hmac_alg_map[alg].setkey(&ctx->u, nkey, key);
hmac->opaque = ctx; return ctx;
return hmac;
} }
void qcrypto_hmac_free(QCryptoHmac *hmac) void qcrypto_hmac_free(QCryptoHmac *hmac)
@ -173,3 +168,22 @@ int qcrypto_hmac_bytesv(QCryptoHmac *hmac,
return 0; return 0;
} }
QCryptoHmac *qcrypto_hmac_new(QCryptoHashAlgorithm alg,
const uint8_t *key, size_t nkey,
Error **errp)
{
QCryptoHmac *hmac;
QCryptoHmacNettle *ctx;
ctx = qcrypto_hmac_ctx_new(alg, key, nkey, errp);
if (!ctx) {
return NULL;
}
hmac = g_new0(QCryptoHmac, 1);
hmac->alg = alg;
hmac->opaque = ctx;
return hmac;
}