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Fix extraction of signature-type from PK context instance

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This commit is contained in:
Hanno Becker 2017-09-13 08:45:48 +01:00
parent 418a62242b
commit fc77144802
2 changed files with 22 additions and 9 deletions
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10
library/x509write_crt.c
View File

@ -313,9 +313,15 @@ int mbedtls_x509write_crt_der( mbedtls_x509write_cert *ctx, unsigned char *buf,
c = tmp_buf + sizeof( tmp_buf );
/* Signature algorithm needed in TBS, and later for actual signature */
pk_alg = mbedtls_pk_get_type( ctx->issuer_key );
if( pk_alg == MBEDTLS_PK_ECKEY )
/* There's no direct way of extracting a signature algorithm
* (represented as an element of mbedtls_pk_type_t) from a PK instance. */
if( mbedtls_pk_can_do( ctx->issuer_key, MBEDTLS_PK_RSA ) )
pk_alg = MBEDTLS_PK_RSA;
else if( mbedtls_pk_can_do( ctx->issuer_key, MBEDTLS_PK_ECDSA ) )
pk_alg = MBEDTLS_PK_ECDSA;
else
pk_alg = MBEDTLS_PK_NONE;
if( ( ret = mbedtls_oid_get_oid_by_sig_alg( pk_alg, ctx->md_alg,
&sig_oid, &sig_oid_len ) ) != 0 )

21
library/x509write_csr.c
View File

@ -194,14 +194,21 @@ int mbedtls_x509write_csr_der( mbedtls_x509write_csr *ctx, unsigned char *buf, s
*/
mbedtls_md( mbedtls_md_info_from_type( ctx->md_alg ), c, len, hash );
pk_alg = mbedtls_pk_get_type( ctx->key );
if( pk_alg == MBEDTLS_PK_ECKEY )
pk_alg = MBEDTLS_PK_ECDSA;
if( ( ret = mbedtls_pk_sign( ctx->key, ctx->md_alg, hash, 0, sig, &sig_len,
f_rng, p_rng ) ) != 0 ||
( ret = mbedtls_oid_get_oid_by_sig_alg( pk_alg, ctx->md_alg,
&sig_oid, &sig_oid_len ) ) != 0 )
f_rng, p_rng ) ) != 0 )
{
return( ret );
}
if( mbedtls_pk_can_do( ctx->key, MBEDTLS_PK_RSA ) )
pk_alg = MBEDTLS_PK_RSA;
else if( mbedtls_pk_can_do( ctx->key, MBEDTLS_PK_ECDSA ) )
pk_alg = MBEDTLS_PK_ECDSA;
else
pk_alg = MBEDTLS_PK_NONE;
if( ( ret = mbedtls_oid_get_oid_by_sig_alg( pk_alg, ctx->md_alg,
&sig_oid, &sig_oid_len ) ) != 0 )
{
return( ret );
}