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Complete x509write_csr support for EC key

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No automated test yet (complicated by the fact that ECDSA signatures are not
deterministic), tested using cert_req (and openssl for verification).
This commit is contained in:
Manuel Pégourié-Gonnard 2013-09-12 02:38:04 +02:00 committed by Paul Bakker
parent edda9041fc
commit 0088c69fbf
1 changed files with 6 additions and 1 deletions
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7
library/x509write.c
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@ -779,6 +779,7 @@ int x509write_csr_der( x509write_csr *ctx, unsigned char *buf, size_t size,
unsigned char tmp_buf[2048];
size_t pub_len = 0, sig_and_oid_len = 0, sig_len;
size_t len = 0;
pk_type_t pk_alg;
/*
* Prepare data to be signed in tmp_buf
@ -828,9 +829,13 @@ int x509write_csr_der( x509write_csr *ctx, unsigned char *buf, size_t size,
*/
md( md_info_from_type( ctx->md_alg ), c, len, hash );
pk_alg = pk_get_type( ctx->key );
if( pk_alg == POLARSSL_PK_ECKEY )
pk_alg = POLARSSL_PK_ECDSA;
if( ( ret = pk_sign( ctx->key, ctx->md_alg, hash, 0, sig, &sig_len,
f_rng, p_rng ) ) != 0 ||
( ret = oid_get_oid_by_sig_alg( pk_get_type( ctx->key ), ctx->md_alg,
( ret = oid_get_oid_by_sig_alg( pk_alg, ctx->md_alg,
&sig_oid, &sig_oid_len ) ) != 0 )
{
return( ret );