| // SPDX-License-Identifier: BSD-2-Clause |
| /* LibTomCrypt, modular cryptographic library -- Tom St Denis |
| * |
| * LibTomCrypt is a library that provides various cryptographic |
| * algorithms in a highly modular and flexible manner. |
| * |
| * The library is free for all purposes without any express |
| * guarantee it works. |
| */ |
| #include "tomcrypt_private.h" |
| |
| /** |
| @file x25519_import_x509.c |
| Import a X25519 key from a X.509 certificate, Steffen Jaeckel |
| */ |
| |
| #ifdef LTC_CURVE25519 |
| |
| static int _x25519_decode(const unsigned char *in, unsigned long inlen, curve25519_key *key) |
| { |
| if (inlen != sizeof(key->pub)) return CRYPT_PK_INVALID_SIZE; |
| XMEMCPY(key->pub, in, sizeof(key->pub)); |
| return CRYPT_OK; |
| } |
| |
| /** |
| Import a X25519 public key from a X.509 certificate |
| @param in The DER encoded X.509 certificate |
| @param inlen The length of the certificate |
| @param key [out] Where to import the key to |
| @return CRYPT_OK if successful, on error all allocated memory is freed automatically |
| */ |
| int x25519_import_x509(const unsigned char *in, unsigned long inlen, curve25519_key *key) |
| { |
| int err; |
| |
| LTC_ARGCHK(in != NULL); |
| LTC_ARGCHK(key != NULL); |
| |
| if ((err = x509_decode_public_key_from_certificate(in, inlen, |
| PKA_X25519, |
| LTC_ASN1_EOL, NULL, NULL, |
| (public_key_decode_cb)_x25519_decode, key)) != CRYPT_OK) { |
| return err; |
| } |
| key->type = PK_PUBLIC; |
| key->algo = PKA_X25519; |
| |
| return err; |
| } |
| |
| #endif |
| |
| /* ref: $Format:%D$ */ |
| /* git commit: $Format:%H$ */ |
| /* commit time: $Format:%ai$ */ |