diff options
Diffstat (limited to 'src/crypto_openssl.c')
| -rw-r--r-- | src/crypto_openssl.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/src/crypto_openssl.c b/src/crypto_openssl.c index 97d80b8..5512a49 100644 --- a/src/crypto_openssl.c +++ b/src/crypto_openssl.c @@ -23,6 +23,29 @@ const char *apk_digest_alg_str(uint8_t alg) return alg_str; } +int apk_digest_alg_len(uint8_t alg) +{ + switch (alg) { + case APK_DIGEST_MD5: return 16; + case APK_DIGEST_SHA1: return 20; + case APK_DIGEST_SHA256: return 32; + case APK_DIGEST_SHA512: return 64; + default: return 0; + } +} + +uint8_t apk_digest_alg_by_len(int len) +{ + switch (len) { + case 0: return APK_DIGEST_NONE; + case 16: return APK_DIGEST_MD5; + case 20: return APK_DIGEST_SHA1; + case 32: return APK_DIGEST_SHA256; + case 64: return APK_DIGEST_SHA512; + default: return APK_DIGEST_NONE; + } +} + uint8_t apk_digest_alg_from_csum(int csum) { switch (csum) { @@ -33,6 +56,17 @@ uint8_t apk_digest_alg_from_csum(int csum) } } +uint8_t apk_digest_from_blob(struct apk_digest *d, apk_blob_t b) +{ + d->alg = apk_digest_alg_by_len(b.len); + d->len = 0; + if (d->alg != APK_DIGEST_NONE) { + d->len = b.len; + memcpy(d->data, b.ptr, d->len); + } + return d->alg; +} + int apk_pkey_init(struct apk_pkey *pkey, EVP_PKEY *key) { unsigned char dig[EVP_MAX_MD_SIZE], *pub = NULL; |