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/poly1305 | |
| 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/poly1305')
| -rw-r--r-- | crypto/poly1305/poly1305_ameth.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/crypto/poly1305/poly1305_ameth.c b/crypto/poly1305/poly1305_ameth.c index ed4115b718..033ee8cd96 100644 --- a/crypto/poly1305/poly1305_ameth.c +++ b/crypto/poly1305/poly1305_ameth.c @@ -67,6 +67,25 @@ static int poly1305_set_priv_key(EVP_PKEY *pkey, const unsigned char *priv, return 1; } +static int poly1305_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 = POLY1305_KEY_SIZE; + return 1; + } + + if (os == NULL || *len < POLY1305_KEY_SIZE) + return 0; + + memcpy(priv, ASN1_STRING_get0_data(os), ASN1_STRING_length(os)); + *len = POLY1305_KEY_SIZE; + + return 1; +} + const EVP_PKEY_ASN1_METHOD poly1305_asn1_meth = { EVP_PKEY_POLY1305, EVP_PKEY_POLY1305, @@ -98,4 +117,6 @@ const EVP_PKEY_ASN1_METHOD poly1305_asn1_meth = { poly1305_set_priv_key, NULL, + poly1305_get_priv_key, + NULL, }; |