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authorTodd Short <tshort@akamai.com>2017-01-11 16:38:44 -0500
committerRich Salz <rsalz@openssl.org>2017-02-01 14:14:36 -0500
commit3f5616d734a92fdf99ab827f21e5b6cab85e7194 (patch)
tree9c106795f72bc6622dfdca63d723ce0127011fc7 /crypto/evp
parent122fa088524571a3b60ebf301873f69afdac8f7a (diff)
downloadopenssl-3f5616d734a92fdf99ab827f21e5b6cab85e7194.tar.gz
Add support for parameterized SipHash
The core SipHash supports either 8 or 16-byte output and a configurable number of rounds. The default behavior, as added to EVP, is to use 16-byte output and 2,4 rounds, which matches the behavior of most implementations. There is an EVP_PKEY_CTRL that can control the output size. Reviewed-by: Richard Levitte <levitte@openssl.org> Reviewed-by: Rich Salz <rsalz@openssl.org> (Merged from https://github.com/openssl/openssl/pull/2216)
Diffstat (limited to 'crypto/evp')
-rw-r--r--crypto/evp/evp_err.c2
-rw-r--r--crypto/evp/p_lib.c17
-rw-r--r--crypto/evp/pmeth_lib.c5
3 files changed, 22 insertions, 2 deletions
diff --git a/crypto/evp/evp_err.c b/crypto/evp/evp_err.c
index bf09052809..6ff9ec4eae 100644
--- a/crypto/evp/evp_err.c
+++ b/crypto/evp/evp_err.c
@@ -69,6 +69,7 @@ static ERR_STRING_DATA EVP_str_functs[] = {
{ERR_FUNC(EVP_F_EVP_PKEY_GET0_HMAC), "EVP_PKEY_get0_hmac"},
{ERR_FUNC(EVP_F_EVP_PKEY_GET0_POLY1305), "EVP_PKEY_get0_poly1305"},
{ERR_FUNC(EVP_F_EVP_PKEY_GET0_RSA), "EVP_PKEY_get0_RSA"},
+ {ERR_FUNC(EVP_F_EVP_PKEY_GET0_SIPHASH), "EVP_PKEY_get0_siphash"},
{ERR_FUNC(EVP_F_EVP_PKEY_KEYGEN), "EVP_PKEY_keygen"},
{ERR_FUNC(EVP_F_EVP_PKEY_KEYGEN_INIT), "EVP_PKEY_keygen_init"},
{ERR_FUNC(EVP_F_EVP_PKEY_NEW), "EVP_PKEY_new"},
@@ -119,6 +120,7 @@ static ERR_STRING_DATA EVP_str_reasons[] = {
{ERR_REASON(EVP_R_EXPECTING_A_DSA_KEY), "expecting a dsa key"},
{ERR_REASON(EVP_R_EXPECTING_A_EC_KEY), "expecting a ec key"},
{ERR_REASON(EVP_R_EXPECTING_A_POLY1305_KEY), "expecting a poly1305 key"},
+ {ERR_REASON(EVP_R_EXPECTING_A_SIPHASH_KEY), "expecting a siphash key"},
{ERR_REASON(EVP_R_FIPS_MODE_NOT_SUPPORTED), "fips mode not supported"},
{ERR_REASON(EVP_R_ILLEGAL_SCRYPT_PARAMETERS),
"illegal scrypt parameters"},
diff --git a/crypto/evp/p_lib.c b/crypto/evp/p_lib.c
index 047e832637..b5e5206778 100644
--- a/crypto/evp/p_lib.c
+++ b/crypto/evp/p_lib.c
@@ -1,5 +1,5 @@
/*
- * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 1995-2017 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
@@ -263,6 +263,21 @@ const unsigned char *EVP_PKEY_get0_poly1305(const EVP_PKEY *pkey, size_t *len)
}
#endif
+#ifndef OPENSSL_NO_SIPHASH
+const unsigned char *EVP_PKEY_get0_siphash(const EVP_PKEY *pkey, size_t *len)
+{
+ ASN1_OCTET_STRING *os = NULL;
+
+ if (pkey->type != EVP_PKEY_SIPHASH) {
+ EVPerr(EVP_F_EVP_PKEY_GET0_SIPHASH, EVP_R_EXPECTING_A_SIPHASH_KEY);
+ return NULL;
+ }
+ os = EVP_PKEY_get0(pkey);
+ *len = os->length;
+ return os->data;
+}
+#endif
+
#ifndef OPENSSL_NO_RSA
int EVP_PKEY_set1_RSA(EVP_PKEY *pkey, RSA *key)
{
diff --git a/crypto/evp/pmeth_lib.c b/crypto/evp/pmeth_lib.c
index 66e1e08149..681e5e06c7 100644
--- a/crypto/evp/pmeth_lib.c
+++ b/crypto/evp/pmeth_lib.c
@@ -1,5 +1,5 @@
/*
- * Copyright 2006-2016 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2006-2017 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
@@ -52,6 +52,9 @@ static const EVP_PKEY_METHOD *standard_methods[] = {
#ifndef OPENSSL_NO_POLY1305
&poly1305_pkey_meth,
#endif
+#ifndef OPENSSL_NO_SIPHASH
+ &siphash_pkey_meth,
+#endif
};
DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, const EVP_PKEY_METHOD *,