diff options
| author | David Makepeace <david.p.makepeace@oracle.com> | 2019-06-03 14:58:54 +1000 |
|---|---|---|
| committer | Pauli <paul.dale@oracle.com> | 2019-07-12 06:26:46 +1000 |
| commit | 54846b7c6ef5718f507def9d192628133f97fe20 (patch) | |
| tree | 4d6810f0dda7442ec72619737c0724322e024ace /crypto/include | |
| parent | 35e264c03232c7843733caa80f8e16bef7e2e829 (diff) | |
Add simple ASN.1 utils for DSA signature DER.
Adds simple utility functions to allow both the default and fips providers to
encode and decode DSA-Sig-Value and ECDSA-Sig-Value (DSA_SIG and ECDSA_SIG
structures) to/from ASN.1 DER without requiring those providers to have a
dependency on the asn1 module.
Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9111)
Diffstat (limited to 'crypto/include')
| -rw-r--r-- | crypto/include/internal/asn1_dsa.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/crypto/include/internal/asn1_dsa.h b/crypto/include/internal/asn1_dsa.h new file mode 100644 index 0000000000..7c720a1733 --- /dev/null +++ b/crypto/include/internal/asn1_dsa.h @@ -0,0 +1,23 @@ +/* + * Copyright 2019 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the Apache License 2.0 (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +#ifndef HEADER_ASN1_DSA_H +# define HEADER_ASN1_DSA_H + +size_t encode_der_length(size_t cont_len, unsigned char **ppout, size_t len); +size_t encode_der_integer(const BIGNUM *n, unsigned char **ppout, size_t len); +size_t encode_der_dsa_sig(const BIGNUM *r, const BIGNUM *s, + unsigned char **ppout, size_t len); +size_t decode_der_length(size_t *pcont_len, const unsigned char **ppin, + size_t len); +size_t decode_der_integer(BIGNUM *n, const unsigned char **ppin, size_t len); +size_t decode_der_dsa_sig(BIGNUM *r, BIGNUM *s, const unsigned char **ppin, + size_t len); + +#endif |