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| author | Pauli <pauli@openssl.org> | 2022-01-25 11:54:56 +1100 |
|---|---|---|
| committer | Pauli <pauli@openssl.org> | 2022-02-01 16:17:24 +1100 |
| commit | b9d8ad3f157fa816c423bec6f7b4328ef894577c (patch) | |
| tree | a8e5c0c9dda0f07a71a247a25b6816c2f1296589 /providers | |
| parent | d3aaf4e9e71944d869ae47821d7b5a8402234ee8 (diff) | |
| download | openssl-new-b9d8ad3f157fa816c423bec6f7b4328ef894577c.tar.gz | |
tls1 prf: implement ctx dup operation
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/17572)
Diffstat (limited to 'providers')
| -rw-r--r-- | providers/implementations/kdfs/tls1_prf.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/providers/implementations/kdfs/tls1_prf.c b/providers/implementations/kdfs/tls1_prf.c index 74a0f7e1f3..23436cf241 100644 --- a/providers/implementations/kdfs/tls1_prf.c +++ b/providers/implementations/kdfs/tls1_prf.c @@ -63,6 +63,7 @@ #include "e_os.h" static OSSL_FUNC_kdf_newctx_fn kdf_tls1_prf_new; +static OSSL_FUNC_kdf_dupctx_fn kdf_tls1_prf_dup; static OSSL_FUNC_kdf_freectx_fn kdf_tls1_prf_free; static OSSL_FUNC_kdf_reset_fn kdf_tls1_prf_reset; static OSSL_FUNC_kdf_derive_fn kdf_tls1_prf_derive; @@ -131,6 +132,31 @@ static void kdf_tls1_prf_reset(void *vctx) ctx->provctx = provctx; } +static void *kdf_tls1_prf_dup(void *vctx) +{ + const TLS1_PRF *src = (const TLS1_PRF *)vctx; + TLS1_PRF *dest; + + dest = kdf_tls1_prf_new(src->provctx); + if (dest != NULL) { + if (src->P_hash != NULL + && (dest->P_hash = EVP_MAC_CTX_dup(src->P_hash)) == NULL) + goto err; + if (src->P_sha1 != NULL + && (dest->P_sha1 = EVP_MAC_CTX_dup(src->P_sha1)) == NULL) + goto err; + if (!ossl_prov_memdup(src->sec, src->seclen, &dest->sec, &dest->seclen)) + goto err; + memcpy(dest->seed, src->seed, src->seedlen); + dest->seedlen = src->seedlen; + } + return dest; + + err: + kdf_tls1_prf_free(dest); + return NULL; +} + static int kdf_tls1_prf_derive(void *vctx, unsigned char *key, size_t keylen, const OSSL_PARAM params[]) { @@ -248,6 +274,7 @@ static const OSSL_PARAM *kdf_tls1_prf_gettable_ctx_params( const OSSL_DISPATCH ossl_kdf_tls1_prf_functions[] = { { OSSL_FUNC_KDF_NEWCTX, (void(*)(void))kdf_tls1_prf_new }, + { OSSL_FUNC_KDF_DUPCTX, (void(*)(void))kdf_tls1_prf_dup }, { OSSL_FUNC_KDF_FREECTX, (void(*)(void))kdf_tls1_prf_free }, { OSSL_FUNC_KDF_RESET, (void(*)(void))kdf_tls1_prf_reset }, { OSSL_FUNC_KDF_DERIVE, (void(*)(void))kdf_tls1_prf_derive }, |