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[crypto] Add support for PKCS#8 private key format

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Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2023-06-02 13:49:27 +01:00
parent 6a7f560e60
commit b0093571f8
4 changed files with 105 additions and 2 deletions
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19
src/crypto/rsa.c
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@@ -164,7 +164,7 @@ static int rsa_parse_mod_exp ( struct asn1_cursor *modulus,
int is_private;
int rc;
/* Enter subjectPublicKeyInfo/RSAPrivateKey */
/* Enter subjectPublicKeyInfo/privateKeyInfo/RSAPrivateKey */
memcpy ( &cursor, raw, sizeof ( cursor ) );
asn1_enter ( &cursor, ASN1_SEQUENCE );
@@ -177,6 +177,23 @@ static int rsa_parse_mod_exp ( struct asn1_cursor *modulus,
/* Skip version */
asn1_skip_any ( &cursor );
/* Enter privateKey, if present */
if ( asn1_check_algorithm ( &cursor,
&rsa_encryption_algorithm ) == 0 ) {
/* Skip privateKeyAlgorithm */
asn1_skip_any ( &cursor );
/* Enter privateKey */
asn1_enter ( &cursor, ASN1_OCTET_STRING );
/* Enter RSAPrivateKey */
asn1_enter ( &cursor, ASN1_SEQUENCE );
/* Skip version */
asn1_skip ( &cursor, ASN1_INTEGER );
}
} else {
/* Public key */