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-rw-r--r--src/lib/hash/openssl_hash/info.txt5
-rw-r--r--src/lib/hash/openssl_hash/openssl_hash.cpp117
2 files changed, 122 insertions, 0 deletions
diff --git a/src/lib/hash/openssl_hash/info.txt b/src/lib/hash/openssl_hash/info.txt
new file mode 100644
index 000000000..c375d272e
--- /dev/null
+++ b/src/lib/hash/openssl_hash/info.txt
@@ -0,0 +1,5 @@
+define OPENSSL_HASH_FUNCTION 20151019
+
+<requires>
+openssl
+</requires>
diff --git a/src/lib/hash/openssl_hash/openssl_hash.cpp b/src/lib/hash/openssl_hash/openssl_hash.cpp
new file mode 100644
index 000000000..c89dd777d
--- /dev/null
+++ b/src/lib/hash/openssl_hash/openssl_hash.cpp
@@ -0,0 +1,117 @@
+/*
+* OpenSSL Hash Functions
+* (C) 1999-2007,2015 Jack Lloyd
+*
+* Botan is released under the Simplified BSD License (see license.txt)
+*/
+
+#include <botan/hash.h>
+#include <botan/internal/openssl.h>
+#include <botan/internal/algo_registry.h>
+#include <openssl/evp.h>
+
+namespace Botan {
+
+namespace {
+
+class OpenSSL_HashFunction : public HashFunction
+ {
+ public:
+ void clear()
+ {
+ const EVP_MD* algo = EVP_MD_CTX_md(&m_md);
+ EVP_DigestInit_ex(&m_md, algo, nullptr);
+ }
+
+ std::string name() const { return m_name; }
+
+ HashFunction* clone() const
+ {
+ const EVP_MD* algo = EVP_MD_CTX_md(&m_md);
+ return new OpenSSL_HashFunction(algo, name());
+ }
+
+ size_t output_length() const
+ {
+ return EVP_MD_size(EVP_MD_CTX_md(&m_md));
+ }
+
+ size_t hash_block_size() const
+ {
+ return EVP_MD_block_size(EVP_MD_CTX_md(&m_md));
+ }
+
+ OpenSSL_HashFunction(const EVP_MD* md, const std::string& name) : m_name(name)
+ {
+ EVP_MD_CTX_init(&m_md);
+ EVP_DigestInit_ex(&m_md, md, nullptr);
+ }
+
+ ~OpenSSL_HashFunction()
+ {
+ EVP_MD_CTX_cleanup(&m_md);
+ }
+
+ private:
+ void add_data(const byte input[], size_t length)
+ {
+ EVP_DigestUpdate(&m_md, input, length);
+ }
+
+ void final_result(byte output[])
+ {
+ EVP_DigestFinal_ex(&m_md, output, nullptr);
+ const EVP_MD* algo = EVP_MD_CTX_md(&m_md);
+ EVP_DigestInit_ex(&m_md, algo, nullptr);
+ }
+
+ std::string m_name;
+ EVP_MD_CTX m_md;
+ };
+
+std::function<HashFunction* (const HashFunction::Spec&)>
+make_evp_hash_maker(const EVP_MD* md, const char* algo)
+ {
+ return [md,algo](const HashFunction::Spec&)
+ {
+ return new OpenSSL_HashFunction(md, algo);
+ };
+ }
+
+#define BOTAN_REGISTER_OPENSSL_EVP_HASH(NAME, EVP) \
+ BOTAN_REGISTER_TYPE(HashFunction, OpenSSL_HashFunction ## EVP, NAME, \
+ make_evp_hash_maker(EVP(), NAME), "openssl", BOTAN_OPENSSL_HASH_PRIO);
+
+#if !defined(OPENSSL_NO_SHA)
+ BOTAN_REGISTER_OPENSSL_EVP_HASH("SHA-160", EVP_sha1);
+#endif
+
+#if !defined(OPENSSL_NO_SHA256)
+ BOTAN_REGISTER_OPENSSL_EVP_HASH("SHA-224", EVP_sha224);
+ BOTAN_REGISTER_OPENSSL_EVP_HASH("SHA-256", EVP_sha256);
+#endif
+
+#if !defined(OPENSSL_NO_SHA512)
+ BOTAN_REGISTER_OPENSSL_EVP_HASH("SHA-384", EVP_sha384);
+ BOTAN_REGISTER_OPENSSL_EVP_HASH("SHA-512", EVP_sha512);
+#endif
+
+#if !defined(OPENSSL_NO_MD2)
+ BOTAN_REGISTER_OPENSSL_EVP_HASH("MD2", EVP_md2);
+#endif
+
+#if !defined(OPENSSL_NO_MD4)
+ BOTAN_REGISTER_OPENSSL_EVP_HASH("MD4", EVP_md4);
+#endif
+
+#if !defined(OPENSSL_NO_MD5)
+ BOTAN_REGISTER_OPENSSL_EVP_HASH("MD5", EVP_md5);
+#endif
+
+#if !defined(OPENSSL_NO_RIPEMD)
+ BOTAN_REGISTER_OPENSSL_EVP_HASH("RIPEMD-160", EVP_ripemd160);
+#endif
+
+}
+
+}