intmbedtls_ecdh_gen_public(mbedtls_ecp_group*grp,mbedtls_mpi*d,mbedtls_ecp_point*Q, int(*f_rng)(void *, unsigned char *, size_t), void *p_rng) Generate a public key. intmbedtls_ecdh_compute_shared(mbedtls_ecp_g
5. 计算ECDH共享密钥 int mbedtls_ecdh_compute_shared( mbedtls_ecp_group *grp, mbedtls_mpi *z, const mbedtls_ecp_point *Q, const mbedtls_mpi *d, int (*f_rng)(void *, unsigned char *, size_t), void *p_rng ); 6. 释放ecp_group结构体 void mbedtls_ecp_group_free( mbedtls_ecp_grou...
ret = mbedtls_ecdh_compute_shared(&grp, &client_secret, &server_pub, &client_pri, mbedtls_ctr_drbg_random, &ctr_drbg); if(ret != 0) { printf( " failed\n ! mbedtls_ecdh_compute_shared returned %d(-0x%04x)\n", ret, -ret); goto exit; } printf( " ok\n" ); /* show public ...
首先,双方事先约定使用 ECDH 秘钥交换算法,此时,双方已知 ECDH 算法里的一个大素数P,这个P可以看做是一个算法中的常量。 其中,P的复杂度决定了密钥的破解复杂度; 其中,还有一个生成元G用来辅助整个秘钥交换,这个G一般就是2或者5,当双方知道G和P之后就开始ECDH交换秘钥的过程。 在业务上,就是双方通过P2P或者信...
mbedtls_printf( " failed\n ! mbedtls_ecdh_compute_shared returned %d\n", ret );10 changes: 5 additions & 5 deletions 10 programs/pkey/ecdsa.c Original file line numberDiff line numberDiff line change @@ -55,7 +55,7 @@ #define ECPARAMS MBEDTLS_ECP_DP_SECP192R1 #if !defined(ECPAR...
TEST_ASSERT( mbedtls_ecdh_gen_public( &grp, &dB, &qB, &mbedtls_test_rnd_pseudo_rand, &rnd_info ) == 0 ); TEST_ASSERT( mbedtls_ecdh_compute_shared( &grp, &zA, &qB, &dA, &mbedtls_test_rnd_pseudo_rand, &rnd_info ) == 0 ); TEST_ASSERT( mbedtls_ecdh_co...
==2927== by 0x54FAE82: mbedtls_ecdh_compute_shared (ecdh.c:151) ==2927== by 0x54FB5B6: ecdh_calc_secret_internal (ecdh.c:629) ==2927== Address 0x57443d0 is 0 bytes inside data symbol "mul_count" ==2927== another one involvingmbedtls_ssl_handshake()andmbedtls_x509_crt_parse()...
/* MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C */ 02146 02147 #if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) 02148 static int ssl_write_hello_verify_request( mbedtls_ssl_context *ssl ) 02149 { 02150 int ret; 02151 unsigned char *p = ssl->out_msg + 4; ...
MBEDTLS_ECDH_GEN_PUBLIC_ALT in config.h. The following functions from the ECDH module can be replaced with an alternative implementation: mbedtls_ecdh_gen_public() and mbedtls_ecdh_compute_shared(). * Add support for alternative implementation of ECJPAKE, controlled by ...
CHECK_AND_CONTINUE( mbedtls_ecdh_gen_public( &ecdh.grp, &ecdh.d, &ecdh.Q, myrand, NULL ) ); mbedtls_snprintf( title, sizeof(title), "ECDH-%s", curve_info->name ); TIME_PUBLIC( title, "handshake", CHECK_AND_CONTINUE( mbedtls_ecdh_compute_shared( &ecdh.grp, &z, &ecdh.Qp...