diff options
| author | Matt Caswell <matt@openssl.org> | 2018-06-01 12:22:28 +0100 |
|---|---|---|
| committer | Matt Caswell <matt@openssl.org> | 2018-06-08 10:04:09 +0100 |
| commit | 0d124b0a51d3ad8c8807cab280ea18fc68489155 (patch) | |
| tree | 0a77711f66e26da760c452c867999b024806bad6 /crypto/siphash | |
| parent | c0a58e034d3eff68ca5e0d36d7b4d147425b0599 (diff) | |
Add support getting raw private/public keys
Only applies to algorithms that support it. Both raw private and public
keys can be obtained for X25519, Ed25519, X448, Ed448. Raw private keys
only can be obtained for HMAC, Poly1305 and SipHash
Fixes #6259
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6394)
Diffstat (limited to 'crypto/siphash')
| -rw-r--r-- | crypto/siphash/siphash_ameth.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/crypto/siphash/siphash_ameth.c b/crypto/siphash/siphash_ameth.c index 6411501bc0..c0ab7efae4 100644 --- a/crypto/siphash/siphash_ameth.c +++ b/crypto/siphash/siphash_ameth.c @@ -68,6 +68,25 @@ static int siphash_set_priv_key(EVP_PKEY *pkey, const unsigned char *priv, return 1; } +static int siphash_get_priv_key(const EVP_PKEY *pkey, unsigned char *priv, + size_t *len) +{ + ASN1_OCTET_STRING *os = (ASN1_OCTET_STRING *)pkey->pkey.ptr; + + if (priv == NULL) { + *len = SIPHASH_KEY_SIZE; + return 1; + } + + if (os == NULL || *len < SIPHASH_KEY_SIZE) + return 0; + + memcpy(priv, ASN1_STRING_get0_data(os), ASN1_STRING_length(os)); + *len = SIPHASH_KEY_SIZE; + + return 1; +} + const EVP_PKEY_ASN1_METHOD siphash_asn1_meth = { EVP_PKEY_SIPHASH, EVP_PKEY_SIPHASH, @@ -99,4 +118,6 @@ const EVP_PKEY_ASN1_METHOD siphash_asn1_meth = { siphash_set_priv_key, NULL, + siphash_get_priv_key, + NULL, }; |