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authorHans Nilsson <[email protected]>2018-09-17 10:15:45 +0200
committerHans Nilsson <[email protected]>2018-09-17 10:15:45 +0200
commit0a218353e4360e36bac304b6a4e0effe78d95615 (patch)
treeb49be0991d2c08af5dd0dc65585b4672f2fccaf1 /lib/crypto/c_src/crypto.c
parent4b48d5b1d21d741b6802a7187129e4b78b87a052 (diff)
parent025bb085ab7b7305e5f464984d0714a94ad12bc9 (diff)
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Merge branch 'hans/crypto/aes_ccm/OTP-15286' into maint
* hans/crypto/aes_ccm/OTP-15286: crypto: Fix no_aead test crypto: Document AES_CCM and fix errors in User's Guide The sizes in the Algorithms chapter for aes_gcm was wrong or incomplete. crypto: AES_CCM test case crypto: All aes_ccm vectors (including unused) This directory contains all aes_ccm vectors. However, effort is needed to include them in the test suite so they are left for later. crypto: Add AES_CCM crypto Will be increase interoperability of future SSL application versions. crypto: Generalize aes_gcm_(de|en)crypt nifs
Diffstat (limited to 'lib/crypto/c_src/crypto.c')
-rw-r--r--lib/crypto/c_src/crypto.c242
1 files changed, 160 insertions, 82 deletions
diff --git a/lib/crypto/c_src/crypto.c b/lib/crypto/c_src/crypto.c
index 3939a6f309..07ef60e395 100644
--- a/lib/crypto/c_src/crypto.c
+++ b/lib/crypto/c_src/crypto.c
@@ -185,7 +185,9 @@
#if OPENSSL_VERSION_NUMBER >= PACKED_OPENSSL_VERSION_PLAIN(1,0,1)
# define HAVE_EVP_AES_CTR
+# define HAVE_AEAD
# define HAVE_GCM
+# define HAVE_CCM
# define HAVE_CMAC
# if OPENSSL_VERSION_NUMBER < PACKED_OPENSSL_VERSION(1,0,1,'d')
# define HAVE_GCM_EVP_DECRYPT_BUG
@@ -543,8 +545,8 @@ static ERL_NIF_TERM evp_generate_key_nif(ErlNifEnv* env, int argc, const ERL_NIF
static ERL_NIF_TERM rand_seed_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
-static ERL_NIF_TERM aes_gcm_encrypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
-static ERL_NIF_TERM aes_gcm_decrypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
+static ERL_NIF_TERM aead_encrypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
+static ERL_NIF_TERM aead_decrypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
#ifdef HAVE_GCM_EVP_DECRYPT_BUG
static ERL_NIF_TERM aes_gcm_decrypt_NO_EVP(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
#endif
@@ -641,8 +643,8 @@ static ErlNifFunc nif_funcs[] = {
{"rand_seed_nif", 1, rand_seed_nif},
- {"aes_gcm_encrypt", 5, aes_gcm_encrypt},
- {"aes_gcm_decrypt", 5, aes_gcm_decrypt},
+ {"aead_encrypt", 6, aead_encrypt},
+ {"aead_decrypt", 6, aead_decrypt},
{"chacha20_poly1305_encrypt", 4, chacha20_poly1305_encrypt},
{"chacha20_poly1305_decrypt", 5, chacha20_poly1305_decrypt},
@@ -716,6 +718,12 @@ static ERL_NIF_TERM atom_onbasis;
static ERL_NIF_TERM atom_aes_cfb8;
static ERL_NIF_TERM atom_aes_cfb128;
+#ifdef HAVE_GCM
+static ERL_NIF_TERM atom_aes_gcm;
+#endif
+#ifdef HAVE_CCM
+static ERL_NIF_TERM atom_aes_ccm;
+#endif
#ifdef HAVE_ECB_IVEC_BUG
static ERL_NIF_TERM atom_aes_ecb;
static ERL_NIF_TERM atom_des_ecb;
@@ -1156,6 +1164,12 @@ static int initialize(ErlNifEnv* env, ERL_NIF_TERM load_info)
#endif
atom_aes_cfb8 = enif_make_atom(env, "aes_cfb8");
atom_aes_cfb128 = enif_make_atom(env, "aes_cfb128");
+#ifdef HAVE_GCM
+ atom_aes_gcm = enif_make_atom(env, "aes_gcm");
+#endif
+#ifdef HAVE_CCM
+ atom_aes_ccm = enif_make_atom(env, "aes_ccm");
+#endif
#ifdef HAVE_ECB_IVEC_BUG
atom_aes_ecb = enif_make_atom(env, "aes_ecb");
atom_des_ecb = enif_make_atom(env, "des_ecb");
@@ -1318,7 +1332,7 @@ static ERL_NIF_TERM algo_hash[12]; /* increase when extending the list */
static int algo_pubkey_cnt, algo_pubkey_fips_cnt;
static ERL_NIF_TERM algo_pubkey[11]; /* increase when extending the list */
static int algo_cipher_cnt, algo_cipher_fips_cnt;
-static ERL_NIF_TERM algo_cipher[24]; /* increase when extending the list */
+static ERL_NIF_TERM algo_cipher[25]; /* increase when extending the list */
static int algo_mac_cnt, algo_mac_fips_cnt;
static ERL_NIF_TERM algo_mac[3]; /* increase when extending the list */
static int algo_curve_cnt, algo_curve_fips_cnt;
@@ -1396,6 +1410,9 @@ static void init_algorithms_types(ErlNifEnv* env)
#if defined(HAVE_GCM)
algo_cipher[algo_cipher_cnt++] = enif_make_atom(env,"aes_gcm");
#endif
+#if defined(HAVE_CCM)
+ algo_cipher[algo_cipher_cnt++] = enif_make_atom(env,"aes_ccm");
+#endif
// Non-validated algorithms follow
algo_cipher_fips_cnt = algo_cipher_cnt;
#ifdef HAVE_AES_IGE
@@ -2549,66 +2566,95 @@ static ERL_NIF_TERM aes_ctr_stream_encrypt(ErlNifEnv* env, int argc, const ERL_N
}
#endif /* !HAVE_EVP_AES_CTR */
-static ERL_NIF_TERM aes_gcm_encrypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
-{/* (Key,Iv,AAD,In) */
-#if defined(HAVE_GCM)
+static ERL_NIF_TERM aead_encrypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
+{/* (Type,Key,Iv,AAD,In) */
+#if defined(HAVE_AEAD)
EVP_CIPHER_CTX *ctx;
const EVP_CIPHER *cipher = NULL;
ErlNifBinary key, iv, aad, in;
unsigned int tag_len;
unsigned char *outp, *tagp;
- ERL_NIF_TERM out, out_tag;
- int len;
+ ERL_NIF_TERM type, out, out_tag;
+ int len, ctx_ctrl_set_ivlen, ctx_ctrl_get_tag;
- if (!enif_inspect_iolist_as_binary(env, argv[0], &key)
- || (key.size != 16 && key.size != 24 && key.size != 32)
- || !enif_inspect_binary(env, argv[1], &iv) || iv.size == 0
- || !enif_inspect_iolist_as_binary(env, argv[2], &aad)
- || !enif_inspect_iolist_as_binary(env, argv[3], &in)
- || !enif_get_uint(env, argv[4], &tag_len) || tag_len < 1 || tag_len > 16) {
+ type = argv[0];
+
+ if (!enif_is_atom(env, type)
+ || !enif_inspect_iolist_as_binary(env, argv[1], &key)
+ || !enif_inspect_binary(env, argv[2], &iv)
+ || !enif_inspect_iolist_as_binary(env, argv[3], &aad)
+ || !enif_inspect_iolist_as_binary(env, argv[4], &in)
+ || !enif_get_uint(env, argv[5], &tag_len)) {
return enif_make_badarg(env);
}
- if (key.size == 16)
- cipher = EVP_aes_128_gcm();
- else if (key.size == 24)
- cipher = EVP_aes_192_gcm();
- else if (key.size == 32)
- cipher = EVP_aes_256_gcm();
+ /* Use cipher_type some day. Must check block_encrypt|decrypt first */
+#if defined(HAVE_GCM)
+ if ((type == atom_aes_gcm)
+ && (iv.size > 0)
+ && (1 <= tag_len && tag_len <= 16)) {
+ ctx_ctrl_set_ivlen = EVP_CTRL_GCM_SET_IVLEN;
+ ctx_ctrl_get_tag = EVP_CTRL_GCM_GET_TAG;
+ if (key.size == 16) cipher = EVP_aes_128_gcm();
+ else if (key.size == 24) cipher = EVP_aes_192_gcm();
+ else if (key.size == 32) cipher = EVP_aes_256_gcm();
+ else
+ enif_make_badarg(env);
- ctx = EVP_CIPHER_CTX_new();
+ } else
+#endif
+#if defined(HAVE_CCM)
+ if ((type == atom_aes_ccm)
+ && (7 <= iv.size && iv.size <= 13)
+ && (4 <= tag_len && tag_len <= 16)
+ && ((tag_len & 1) == 0)
+ ) {
+ ctx_ctrl_set_ivlen = EVP_CTRL_CCM_SET_IVLEN;
+ ctx_ctrl_get_tag = EVP_CTRL_CCM_GET_TAG;
+ if (key.size == 16) cipher = EVP_aes_128_ccm();
+ else if (key.size == 24) cipher = EVP_aes_192_ccm();
+ else if (key.size == 32) cipher = EVP_aes_256_ccm();
+ else
+ enif_make_badarg(env);
- if (EVP_EncryptInit_ex(ctx, cipher, NULL, NULL, NULL) != 1)
- goto out_err;
+ } else
+#endif
+ enif_make_badarg(env);
+
+ ctx = EVP_CIPHER_CTX_new();
+ if (EVP_EncryptInit_ex(ctx, cipher, NULL, NULL, NULL) != 1) goto out_err;
+ if (EVP_CIPHER_CTX_ctrl(ctx, ctx_ctrl_set_ivlen, iv.size, NULL) != 1) goto out_err;
- EVP_CIPHER_CTX_set_padding(ctx, 0);
+#if defined(HAVE_GCM)
+ if (type == atom_aes_gcm) {
+ if (EVP_EncryptInit_ex(ctx, NULL, NULL, key.data, iv.data) != 1) goto out_err;
+ } else
+#endif
+#if defined(HAVE_CCM)
+ if (type == atom_aes_ccm) {
+ if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_CCM_SET_TAG, tag_len, NULL) != 1) goto out_err;
+ if (EVP_EncryptInit_ex(ctx, NULL, NULL, key.data, iv.data) != 1) goto out_err;
+ if (EVP_EncryptUpdate(ctx, NULL, &len, NULL, in.size) != 1) goto out_err;
+ } else
+#endif
+ goto out_err;
- if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_IVLEN, iv.size, NULL) != 1)
- goto out_err;
- if (EVP_EncryptInit_ex(ctx, NULL, NULL, key.data, iv.data) != 1)
- goto out_err;
- if (EVP_EncryptUpdate(ctx, NULL, &len, aad.data, aad.size) != 1)
- goto out_err;
+ if (EVP_EncryptUpdate(ctx, NULL, &len, aad.data, aad.size) != 1) goto out_err;
outp = enif_make_new_binary(env, in.size, &out);
- if (EVP_EncryptUpdate(ctx, outp, &len, in.data, in.size) != 1)
- goto out_err;
- if (EVP_EncryptFinal_ex(ctx, outp+len, &len) != 1)
- goto out_err;
+ if (EVP_EncryptUpdate(ctx, outp, &len, in.data, in.size) != 1) goto out_err;
+ if (EVP_EncryptFinal_ex(ctx, outp, &len) != 1) goto out_err;
tagp = enif_make_new_binary(env, tag_len, &out_tag);
- if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_GET_TAG, tag_len, tagp) != 1)
- goto out_err;
+ if (EVP_CIPHER_CTX_ctrl(ctx, ctx_ctrl_get_tag, tag_len, tagp) != 1) goto out_err;
EVP_CIPHER_CTX_free(ctx);
-
CONSUME_REDS(env, in);
-
return enif_make_tuple2(env, out, out_tag);
-out_err:
+out_err:
EVP_CIPHER_CTX_free(ctx);
return atom_error;
@@ -2617,58 +2663,90 @@ out_err:
#endif
}
-static ERL_NIF_TERM aes_gcm_decrypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
-{/* (Key,Iv,AAD,In,Tag) */
-#if defined(HAVE_GCM_EVP_DECRYPT_BUG)
- return aes_gcm_decrypt_NO_EVP(env, argc, argv);
-#elif defined(HAVE_GCM)
+static ERL_NIF_TERM aead_decrypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
+{/* (Type,Key,Iv,AAD,In,Tag) */
+#if defined(HAVE_AEAD)
EVP_CIPHER_CTX *ctx;
const EVP_CIPHER *cipher = NULL;
ErlNifBinary key, iv, aad, in, tag;
unsigned char *outp;
- ERL_NIF_TERM out;
- int len;
+ ERL_NIF_TERM type, out;
+ int len, ctx_ctrl_set_ivlen;
- if (!enif_inspect_iolist_as_binary(env, argv[0], &key)
- || (key.size != 16 && key.size != 24 && key.size != 32)
- || !enif_inspect_binary(env, argv[1], &iv) || iv.size == 0
- || !enif_inspect_iolist_as_binary(env, argv[2], &aad)
- || !enif_inspect_iolist_as_binary(env, argv[3], &in)
- || !enif_inspect_iolist_as_binary(env, argv[4], &tag)) {
+ type = argv[0];
+#if defined(HAVE_GCM_EVP_DECRYPT_BUG)
+ if (type == atom_aes_gcm)
+ return aes_gcm_decrypt_NO_EVP(env, argc, argv);
+#endif
+
+ if (!enif_is_atom(env, type)
+ || !enif_inspect_iolist_as_binary(env, argv[1], &key)
+ || !enif_inspect_binary(env, argv[2], &iv)
+ || !enif_inspect_iolist_as_binary(env, argv[3], &aad)
+ || !enif_inspect_iolist_as_binary(env, argv[4], &in)
+ || !enif_inspect_iolist_as_binary(env, argv[5], &tag)) {
return enif_make_badarg(env);
}
- if (key.size == 16)
- cipher = EVP_aes_128_gcm();
- else if (key.size == 24)
- cipher = EVP_aes_192_gcm();
- else if (key.size == 32)
- cipher = EVP_aes_256_gcm();
+ /* Use cipher_type some day. Must check block_encrypt|decrypt first */
+#if defined(HAVE_GCM)
+ if ((type == atom_aes_gcm)
+ && (iv.size > 0)) {
+ ctx_ctrl_set_ivlen = EVP_CTRL_GCM_SET_IVLEN;
+ if (key.size == 16) cipher = EVP_aes_128_gcm();
+ else if (key.size == 24) cipher = EVP_aes_192_gcm();
+ else if (key.size == 32) cipher = EVP_aes_256_gcm();
+ else
+ enif_make_badarg(env);
- ctx = EVP_CIPHER_CTX_new();
+ } else
+#endif
+#if defined(HAVE_CCM)
+ if ((type == atom_aes_ccm)
+ && (iv.size > 0)) {
+ ctx_ctrl_set_ivlen = EVP_CTRL_CCM_SET_IVLEN;
+ if (key.size == 16) cipher = EVP_aes_128_ccm();
+ else if (key.size == 24) cipher = EVP_aes_192_ccm();
+ else if (key.size == 32) cipher = EVP_aes_256_ccm();
+ else
+ enif_make_badarg(env);
- if (EVP_DecryptInit_ex(ctx, cipher, NULL, NULL, NULL) != 1)
- goto out_err;
- if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_IVLEN, iv.size, NULL) != 1)
- goto out_err;
- if (EVP_DecryptInit_ex(ctx, NULL, NULL, key.data, iv.data) != 1)
- goto out_err;
- if (EVP_DecryptUpdate(ctx, NULL, &len, aad.data, aad.size) != 1)
- goto out_err;
+ } else
+#endif
+ enif_make_badarg(env);
outp = enif_make_new_binary(env, in.size, &out);
- if (EVP_DecryptUpdate(ctx, outp, &len, in.data, in.size) != 1)
- goto out_err;
- if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_TAG, tag.size, tag.data) != 1)
- goto out_err;
- if (EVP_DecryptFinal_ex(ctx, outp+len, &len) != 1)
- goto out_err;
+ ctx = EVP_CIPHER_CTX_new();
+ if (EVP_DecryptInit_ex(ctx, cipher, NULL, NULL, NULL) != 1) goto out_err;
+ if (EVP_CIPHER_CTX_ctrl(ctx, ctx_ctrl_set_ivlen, iv.size, NULL) != 1) goto out_err;
+#if defined(HAVE_CCM)
+ if (type == atom_aes_ccm) {
+ if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_CCM_SET_TAG, tag.size, tag.data) != 1) goto out_err;
+ }
+#endif
+
+ if (EVP_DecryptInit_ex(ctx, NULL, NULL, key.data, iv.data) != 1) goto out_err;
+
+#if defined(HAVE_CCM)
+ if (type == atom_aes_ccm) {
+ if (1 != EVP_DecryptUpdate(ctx, NULL, &len, NULL, in.size)) goto out_err;
+ }
+#endif
+
+ if (EVP_DecryptUpdate(ctx, NULL, &len, aad.data, aad.size) != 1) goto out_err;
+ if (EVP_DecryptUpdate(ctx, outp, &len, in.data, in.size) != 1) goto out_err;
+
+#if defined(HAVE_GCM)
+ if (type == atom_aes_gcm) {
+ if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_TAG, tag.size, tag.data) != 1) goto out_err;
+ if (EVP_DecryptFinal_ex(ctx, outp+len, &len) != 1) goto out_err;
+ }
+#endif
EVP_CIPHER_CTX_free(ctx);
CONSUME_REDS(env, in);
-
return out;
out_err:
@@ -2681,19 +2759,19 @@ out_err:
#ifdef HAVE_GCM_EVP_DECRYPT_BUG
static ERL_NIF_TERM aes_gcm_decrypt_NO_EVP(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
-{
+{/* (Type,Key,Iv,AAD,In,Tag) */
GCM128_CONTEXT *ctx;
ErlNifBinary key, iv, aad, in, tag;
AES_KEY aes_key;
unsigned char *outp;
ERL_NIF_TERM out;
- if (!enif_inspect_iolist_as_binary(env, argv[0], &key)
+ if (!enif_inspect_iolist_as_binary(env, argv[1], &key)
|| AES_set_encrypt_key(key.data, key.size*8, &aes_key) != 0
- || !enif_inspect_binary(env, argv[1], &iv) || iv.size == 0
- || !enif_inspect_iolist_as_binary(env, argv[2], &aad)
- || !enif_inspect_iolist_as_binary(env, argv[3], &in)
- || !enif_inspect_iolist_as_binary(env, argv[4], &tag)) {
+ || !enif_inspect_binary(env, argv[2], &iv) || iv.size == 0
+ || !enif_inspect_iolist_as_binary(env, argv[3], &aad)
+ || !enif_inspect_iolist_as_binary(env, argv[4], &in)
+ || !enif_inspect_iolist_as_binary(env, argv[5], &tag)) {
return enif_make_badarg(env);
}