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-rw-r--r--lib/crypto/c_src/crypto.c144
1 files changed, 143 insertions, 1 deletions
diff --git a/lib/crypto/c_src/crypto.c b/lib/crypto/c_src/crypto.c
index 25616410be..a1f2614f69 100644
--- a/lib/crypto/c_src/crypto.c
+++ b/lib/crypto/c_src/crypto.c
@@ -1,7 +1,7 @@
/*
* %CopyrightBegin%
*
- * Copyright Ericsson AB 2010-2011. All Rights Reserved.
+ * Copyright Ericsson AB 2010-2012. All Rights Reserved.
*
* The contents of this file are subject to the Erlang Public License,
* Version 1.1, (the "License"); you may not use this file except in
@@ -149,6 +149,8 @@ static ERL_NIF_TERM md4_update(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv
static ERL_NIF_TERM md4_final(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
static ERL_NIF_TERM md5_mac_n(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
static ERL_NIF_TERM sha_mac_n(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
+static ERL_NIF_TERM sha256_mac_n_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
+static ERL_NIF_TERM sha512_mac_n_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
static ERL_NIF_TERM hmac_init(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
static ERL_NIF_TERM hmac_update(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
static ERL_NIF_TERM hmac_final(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
@@ -208,6 +210,16 @@ static void hmac_md5(unsigned char *key, int klen,
static void hmac_sha1(unsigned char *key, int klen,
unsigned char *dbuf, int dlen,
unsigned char *hmacbuf);
+#ifdef HAVE_SHA256
+static void hmac_sha256(unsigned char *key, int klen,
+ unsigned char *dbuf, int dlen,
+ unsigned char *hmacbuf);
+#endif
+#ifdef HAVE_SHA512
+static void hmac_sha512(unsigned char *key, int klen,
+ unsigned char *dbuf, int dlen,
+ unsigned char *hmacbuf);
+#endif
static int library_refc = 0; /* number of users of this dynamic library */
@@ -235,6 +247,8 @@ static ErlNifFunc nif_funcs[] = {
{"md4_final", 1, md4_final},
{"md5_mac_n", 3, md5_mac_n},
{"sha_mac_n", 3, sha_mac_n},
+ {"sha256_mac_n_nif", 3, sha256_mac_n_nif},
+ {"sha512_mac_n_nif", 3, sha512_mac_n_nif},
{"hmac_init", 2, hmac_init},
{"hmac_update", 2, hmac_update},
{"hmac_final", 1, hmac_final},
@@ -292,6 +306,7 @@ ERL_NIF_INIT(crypto,nif_funcs,load,reload,upgrade,unload)
#define SHA384_LEN (384/8)
#define SHA512_LEN (512/8)
#define HMAC_INT_LEN 64
+#define HMAC_INT2_LEN 128
#define HMAC_IPAD 0x36
#define HMAC_OPAD 0x5c
@@ -765,6 +780,50 @@ static ERL_NIF_TERM sha_mac_n(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[
return ret;
}
+static ERL_NIF_TERM sha256_mac_n_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
+{/* (Key, Data, MacSize) */
+#ifdef HAVE_SHA256
+ unsigned char hmacbuf[SHA256_DIGEST_LENGTH];
+ ErlNifBinary key, data;
+ unsigned mac_sz;
+ ERL_NIF_TERM ret;
+
+ if (!enif_inspect_iolist_as_binary(env, argv[0], &key)
+ || !enif_inspect_iolist_as_binary(env, argv[1], &data)
+ || !enif_get_uint(env,argv[2],&mac_sz) || mac_sz > SHA256_DIGEST_LENGTH) {
+ return enif_make_badarg(env);
+ }
+ hmac_sha256(key.data, key.size, data.data, data.size, hmacbuf);
+ memcpy(enif_make_new_binary(env, mac_sz, &ret),
+ hmacbuf, mac_sz);
+ return ret;
+#else
+ return atom_notsup;
+#endif
+}
+
+static ERL_NIF_TERM sha512_mac_n_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
+{/* (Key, Data, MacSize) */
+#ifdef HAVE_SHA512
+ unsigned char hmacbuf[SHA512_DIGEST_LENGTH];
+ ErlNifBinary key, data;
+ unsigned mac_sz;
+ ERL_NIF_TERM ret;
+
+ if (!enif_inspect_iolist_as_binary(env, argv[0], &key)
+ || !enif_inspect_iolist_as_binary(env, argv[1], &data)
+ || !enif_get_uint(env,argv[2],&mac_sz) || mac_sz > SHA512_DIGEST_LENGTH) {
+ return enif_make_badarg(env);
+ }
+ hmac_sha512(key.data, key.size, data.data, data.size, hmacbuf);
+ memcpy(enif_make_new_binary(env, mac_sz, &ret),
+ hmacbuf, mac_sz);
+ return ret;
+#else
+ return atom_notsup;
+#endif
+}
+
static ERL_NIF_TERM hmac_init(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
{/* (Type, Key) */
ErlNifBinary key;
@@ -773,6 +832,8 @@ static ERL_NIF_TERM hmac_init(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[
const EVP_MD *md;
if (argv[0] == atom_sha) md = EVP_sha1();
+ else if (argv[0] == atom_sha256) md = EVP_sha256();
+ else if (argv[0] == atom_sha512) md = EVP_sha512();
else if (argv[0] == atom_md5) md = EVP_md5();
else if (argv[0] == atom_ripemd160) md = EVP_ripemd160();
else goto badarg;
@@ -2184,3 +2245,84 @@ static void hmac_sha1(unsigned char *key, int klen,
SHA1_Final((unsigned char *) hmacbuf, &ctx);
}
+#ifdef HAVE_SHA256
+static void hmac_sha256(unsigned char *key, int klen,
+ unsigned char *dbuf, int dlen,
+ unsigned char *hmacbuf)
+{
+ SHA256_CTX ctx;
+ char ipad[HMAC_INT_LEN];
+ char opad[HMAC_INT_LEN];
+ unsigned char nkey[SHA256_DIGEST_LENGTH];
+ int i;
+
+ /* Change key if longer than 64 bytes */
+ if (klen > HMAC_INT_LEN) {
+ SHA256(key, klen, nkey);
+ key = nkey;
+ klen = SHA256_DIGEST_LENGTH;
+ }
+
+ memset(ipad, '\0', sizeof(ipad));
+ memset(opad, '\0', sizeof(opad));
+ memcpy(ipad, key, klen);
+ memcpy(opad, key, klen);
+
+ for (i = 0; i < HMAC_INT_LEN; i++) {
+ ipad[i] ^= HMAC_IPAD;
+ opad[i] ^= HMAC_OPAD;
+ }
+
+ /* inner SHA */
+ SHA256_Init(&ctx);
+ SHA256_Update(&ctx, ipad, HMAC_INT_LEN);
+ SHA256_Update(&ctx, dbuf, dlen);
+ SHA256_Final((unsigned char *) hmacbuf, &ctx);
+ /* outer SHA */
+ SHA256_Init(&ctx);
+ SHA256_Update(&ctx, opad, HMAC_INT_LEN);
+ SHA256_Update(&ctx, hmacbuf, SHA256_DIGEST_LENGTH);
+ SHA256_Final((unsigned char *) hmacbuf, &ctx);
+}
+#endif
+
+#ifdef HAVE_SHA512
+static void hmac_sha512(unsigned char *key, int klen,
+ unsigned char *dbuf, int dlen,
+ unsigned char *hmacbuf)
+{
+ SHA512_CTX ctx;
+ char ipad[HMAC_INT2_LEN];
+ char opad[HMAC_INT2_LEN];
+ unsigned char nkey[SHA512_DIGEST_LENGTH];
+ int i;
+
+ /* Change key if longer than 64 bytes */
+ if (klen > HMAC_INT2_LEN) {
+ SHA512(key, klen, nkey);
+ key = nkey;
+ klen = SHA512_DIGEST_LENGTH;
+ }
+
+ memset(ipad, '\0', sizeof(ipad));
+ memset(opad, '\0', sizeof(opad));
+ memcpy(ipad, key, klen);
+ memcpy(opad, key, klen);
+
+ for (i = 0; i < HMAC_INT2_LEN; i++) {
+ ipad[i] ^= HMAC_IPAD;
+ opad[i] ^= HMAC_OPAD;
+ }
+
+ /* inner SHA */
+ SHA512_Init(&ctx);
+ SHA512_Update(&ctx, ipad, HMAC_INT2_LEN);
+ SHA512_Update(&ctx, dbuf, dlen);
+ SHA512_Final((unsigned char *) hmacbuf, &ctx);
+ /* outer SHA */
+ SHA512_Init(&ctx);
+ SHA512_Update(&ctx, opad, HMAC_INT2_LEN);
+ SHA512_Update(&ctx, hmacbuf, SHA512_DIGEST_LENGTH);
+ SHA512_Final((unsigned char *) hmacbuf, &ctx);
+}
+#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 08:47:31 +0000