int blake2s( uint8_t *out, const void *in, const void *key, size_t outlen, size_t inlen, size_t keylen ) { blake2s_state S[1]; /* Verify parameters */ if ( NULL == in && inlen > 0 ) return -1; if ( NULL == out ) return -1; if ( NULL == key && keylen > 0 ) return -1; if( !outlen || outlen > BLAKE2S_OUTBYTES ) return -1; if( keylen > BLAKE2S_KEYBYTES ) return -1; if( keylen > 0 ) { if( blake2s_init_key( S, outlen, key, keylen ) < 0 ) return -1; } else { if( blake2s_init( S, outlen ) < 0 ) return -1; } if( blake2s_update( S, ( uint8_t * )in, inlen ) < 0) return -1; return blake2s_final( S, out, outlen ); }
int blake2s( uint8_t *out, const void *in, const void *key, const uint8_t outlen, const uint64_t inlen, uint8_t keylen ) { blake2s_state S[1]; /* Verify parameters */ if ( NULL == in ) return -1; if ( NULL == out ) return -1; if ( NULL == key ) keylen = 0; /* Fail here instead if keylen != 0 and key == NULL? */ if( keylen > 0 ) { if( blake2s_init_key( S, outlen, key, keylen ) < 0 ) return -1; } else { if( blake2s_init( S, outlen ) < 0 ) return -1; } blake2s_update( S, ( uint8_t * )in, inlen ); blake2s_final( S, out, outlen ); return 0; }
static NAN_METHOD(New) { if(!info.IsConstructCall()) { return Nan::ThrowError("Constructor must be called with new"); } Hash *obj = new Hash(); obj->Wrap(info.This()); if(info.Length() < 1 || !info[0]->IsString()) { return Nan::ThrowError(v8::Exception::TypeError(Nan::New<v8::String>("First argument must be a string with algorithm name").ToLocalChecked())); } std::string algo = std::string(*v8::String::Utf8Value(info[0]->ToString())); const char *key_data = nullptr; size_t key_length; if(algo != "bypass" && info.Length() >= 2) { if(!node::Buffer::HasInstance(info[1])) { return Nan::ThrowError(v8::Exception::TypeError(Nan::New<v8::String>("If key argument is given, it must be a Buffer").ToLocalChecked())); } key_data = node::Buffer::Data(info[1]); key_length = node::Buffer::Length(info[1]); } if(algo == "bypass") { // Initialize nothing - .copy() will set up all the state } else if(algo == "blake2b") { if(!key_data) { if(blake2b_init(reinterpret_cast<blake2b_state*>(&obj->state), BLAKE2B_OUTBYTES) != 0) { return Nan::ThrowError("blake2b_init failure"); } } else { if(key_length > BLAKE2B_KEYBYTES) { return Nan::ThrowError("Key must be 64 bytes or smaller"); } if(blake2b_init_key(reinterpret_cast<blake2b_state*>(&obj->state), BLAKE2B_OUTBYTES, key_data, key_length) != 0) { return Nan::ThrowError("blake2b_init_key failure"); } } obj->outbytes = 512 / 8; obj->any_blake2_update = BLAKE_FN_CAST(blake2b_update); obj->any_blake2_final = BLAKE_FN_CAST(blake2b_final); obj->initialized_ = true; } else if(algo == "blake2bp") { if(!key_data) { if(blake2bp_init(reinterpret_cast<blake2bp_state*>(&obj->state), BLAKE2B_OUTBYTES) != 0) { return Nan::ThrowError("blake2bp_init failure"); } } else { if(key_length > BLAKE2B_KEYBYTES) { return Nan::ThrowError("Key must be 64 bytes or smaller"); } if(blake2bp_init_key(reinterpret_cast<blake2bp_state*>(&obj->state), BLAKE2B_OUTBYTES, key_data, key_length) != 0) { return Nan::ThrowError("blake2bp_init_key failure"); } } obj->outbytes = 512 / 8; obj->any_blake2_update = BLAKE_FN_CAST(blake2bp_update); obj->any_blake2_final = BLAKE_FN_CAST(blake2bp_final); obj->initialized_ = true; } else if(algo == "blake2s") { if(!key_data) { if(blake2s_init(reinterpret_cast<blake2s_state*>(&obj->state), BLAKE2S_OUTBYTES) != 0) { return Nan::ThrowError("blake2bs_init failure"); } } else { if(key_length > BLAKE2S_KEYBYTES) { return Nan::ThrowError("Key must be 32 bytes or smaller"); } if(blake2s_init_key(reinterpret_cast<blake2s_state*>(&obj->state), BLAKE2S_OUTBYTES, key_data, key_length) != 0) { return Nan::ThrowError("blake2s_init_key failure"); } } obj->outbytes = 256 / 8; obj->any_blake2_update = BLAKE_FN_CAST(blake2s_update); obj->any_blake2_final = BLAKE_FN_CAST(blake2s_final); obj->initialized_ = true; } else if(algo == "blake2sp") { if(!key_data) { if(blake2sp_init(reinterpret_cast<blake2sp_state*>(&obj->state), BLAKE2S_OUTBYTES) != 0) { return Nan::ThrowError("blake2sp_init failure"); } } else { if(key_length > BLAKE2S_KEYBYTES) { return Nan::ThrowError("Key must be 32 bytes or smaller"); } if(blake2sp_init_key(reinterpret_cast<blake2sp_state*>(&obj->state), BLAKE2S_OUTBYTES, key_data, key_length) != 0) { return Nan::ThrowError("blake2sp_init_key failure"); } } obj->outbytes = 256 / 8; obj->any_blake2_update = BLAKE_FN_CAST(blake2sp_update); obj->any_blake2_final = BLAKE_FN_CAST(blake2sp_final); obj->initialized_ = true; } else { return Nan::ThrowError("Algorithm must be blake2b, blake2s, blake2bp, or blake2sp"); } info.GetReturnValue().Set(info.This()); }
int blake2s_low_init_key(blake2s_state *context, const unsigned char *key, size_t key_len) { return blake2s_init_key(context, BLAKE2S_OUTBYTES, key, key_len); }