60 lines
1.5 KiB
C++
60 lines
1.5 KiB
C++
#pragma once
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#include <openssl/ec.h>
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#include <openssl/crypto.h>
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#include <openssl/evp.h>
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#include <openssl/conf.h>
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#include <openssl/err.h>
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#include <openssl/ecdsa.h>
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#include <openssl/ecdh.h>
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#include <openssl/sha.h>
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#include <openssl/obj_mac.h>
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/**
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* @file openssl.hpp
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* Provides common utility calls for wrapping openssl c api.
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*/
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namespace fc
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{
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template <typename ssl_type>
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struct ssl_wrapper
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{
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ssl_wrapper(ssl_type* obj):obj(obj) {}
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operator ssl_type*()
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{
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return obj;
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}
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ssl_type* operator->() { return obj; }
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ssl_type* obj;
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};
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#define SSL_TYPE(name, ssl_type, free_func) \
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struct name : public ssl_wrapper<ssl_type> \
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{ \
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name(ssl_type* obj=nullptr) \
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: ssl_wrapper(obj) {} \
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~name() \
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{ \
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if( obj != nullptr ) \
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free_func(obj); \
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} \
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};
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SSL_TYPE(ec_group, EC_GROUP, EC_GROUP_free)
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SSL_TYPE(ec_point, EC_POINT, EC_POINT_free)
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SSL_TYPE(ecdsa_sig, ECDSA_SIG, ECDSA_SIG_free)
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SSL_TYPE(bn_ctx, BN_CTX, BN_CTX_free)
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SSL_TYPE(evp_cipher_ctx, EVP_CIPHER_CTX, EVP_CIPHER_CTX_free )
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/** allocates a bignum by default.. */
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struct ssl_bignum : public ssl_wrapper<BIGNUM>
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{
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ssl_bignum() : ssl_wrapper(BN_new()) {}
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~ssl_bignum() { BN_free(obj); }
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};
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int init_openssl();
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} // namespace fc
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