执行以下操作时遇到问题:
我正在使用的图书馆:
我已经测试并确保的其他事项:
首先,我通过运行此脚本来生成密钥
GenerateKeys.py
import ecdsa
from ecdsa import SigningKey, SECP256k1
sk = ecdsa.SigningKey.generate(curve=ecdsa.SECP256k1)
vk = sk.get_verifying_key()
sklst = []
for e in bytearray(sk.to_string()):
sklst.append(e)
vklst = []
for e in bytearray(vk.to_string()):
vklst.append(e)
print("Private Key is:")
print(sklst)
print("Public Key is:")
print(vklst)
GenerateKeys.py的输出
Private Key is:
[38, 108, 90, 112, 230, 138, 62, 97, 107, 90, 227, 165, 207, 80, 251, 154, 17, 4, 73, 53, 33, 162, 33, 200, 243, 205, 116, 43, 36, 59, 201, 84]
Public Key is:
[163, 238, 83, 33, 229, 249, 105, 12, 141, 7, 214, 134, 148, 1, 198, 45, 13, 31, 9, 223, 85, 201, 98, 248, 73, 160, 40, 255, 64, 214, 250, 121, 234, 103, 212, 148, 197, 48, 210, 38, 166, 51, 30, 81, 119, 240, 125, 104, 237, 24, 3, 216, 229, 87, 45, 7, 115, 69, 94, 187, 236, 91, 142, 18]
复制将私钥粘贴到Sign.py python脚本中,并生成签名和公钥 我已经使用“ Hello”作为用于创建签名的消息
Sign.py
import ecdsa
from ecdsa import SigningKey, SECP256k1
signinKey_lst = [38, 108, 90, 112, 230, 138, 62, 97, 107, 90, 227, 165, 207, 80, 251, 154, 17, 4, 73, 53, 33, 162, 33, 200, 243, 205, 116, 43, 36, 59, 201, 84]
signinKey_lst = bytearray(signinKey_lst)
signinKey = ecdsa.SigningKey.from_string(signinKey_lst, curve=ecdsa.SECP256k1)
verifyKey = signinKey.get_verifying_key()
signinKey_lst = []
for e in bytearray(signinKey.to_string()):
signinKey_lst.append(e)
verifyKey_lst = []
for e in bytearray(verifyKey.to_string()):
verifyKey_lst.append(e)
print("Public Key is:")
print(verifyKey_lst)
msg = "Hello"
sign = signinKey.sign(msg)
sign_lst = []
verifyKey_lst = []
for e in bytearray(sign):
sign_lst.append(e)
print("Signature is:")
print(sign_lst)
Sign.py的输出:
Private Key is:
[38, 108, 90, 112, 230, 138, 62, 97, 107, 90, 227, 165, 207, 80, 251, 154, 17, 4, 73, 53, 33, 162, 33, 200, 243, 205, 116, 43, 36, 59, 201, 84]
Public Key is:
[163, 238, 83, 33, 229, 249, 105, 12, 141, 7, 214, 134, 148, 1, 198, 45, 13, 31, 9, 223, 85, 201, 98, 248, 73, 160, 40, 255, 64, 214, 250, 121, 234, 103, 212, 148, 197, 48, 210, 38, 166, 51, 30, 81, 119, 240, 125, 104, 237, 24, 3, 216, 229, 87, 45, 7, 115, 69, 94, 187, 236, 91, 142, 18]
Signature is:
[47, 107, 101, 228, 187, 209, 97, 180, 83, 149, 133, 71, 62, 15, 86, 186, 192, 222, 108, 221, 249, 128, 124, 7, 139, 110, 103, 108, 62, 89, 136, 152, 226, 43, 104, 166, 92, 247, 9, 201, 135, 96, 19, 75, 55, 229, 67, 198, 188, 90, 246, 17, 157, 1, 229, 71, 151, 206, 211, 95, 41, 51, 96, 42]
复制粘贴签名,并在带有Micro ecc库的Visual Studio中使用相同的消息:-
source.c
#include "stdio.h"
#include <stdlib.h>
#include <string.h>
#include "uECC.h"
#include "constants.h"
uint8_t privateKey[32] = { 0 };
uint8_t publicKey[64] = { 163, 238, 83, 33, 229, 249, 105, 12, 141, 7, 214, 134, 148, 1, 198, 45, 13, 31, 9, 223, 85, 201, 98, 248, 73, 160, 40, 255, 64, 214, 250, 121, 234, 103, 212, 148, 197, 48, 210, 38, 166, 51, 30, 81, 119, 240, 125, 104, 237, 24, 3, 216, 229, 87, 45, 7, 115, 69, 94, 187, 236, 91, 142, 18 };
uint8_t msg[5] = { 'H','e','l','l','o' };
uint8_t sign[64] = { 47, 107, 101, 228, 187, 209, 97, 180, 83, 149, 133, 71, 62, 15, 86, 186, 192, 222, 108, 221, 249, 128, 124, 7, 139, 110, 103, 108, 62, 89, 136, 152, 226, 43, 104, 166, 92, 247, 9, 201, 135, 96, 19, 75, 55, 229, 67, 198, 188, 90, 246, 17, 157, 1, 229, 71, 151, 206, 211, 95, 41, 51, 96, 42 };
void printArray(uint8_t* pToArr, uint32_t u16ArrSize)
{
uint32_t c = 0;
printf("[ ");
for (c = 0; c < u16ArrSize; c++)
{
if (c != (u16ArrSize - 1))
{
printf(" %u,", *pToArr);
}
else
{
printf(" %u", *pToArr);
}
pToArr++;
}
printf(" ]");
return;
}
int main()
{
const struct uECC_Curve_t* curve;
#if uECC_SUPPORTS_secp256k1
curve = uECC_secp256k1();
#endif
const char* m = "Hello World"; //{0xff, 0xff, 0xff, 0xff, 0xff,0xff }
printf("\n/*************************************************************************************************\n");
printf("Validating the Encrypted hash with the public key and the hash used\n");
printf("\n\nPublic Key:\n");
printArray(publicKey, sizeof(publicKey));
printf("\n\nMsg:\n");
printArray(msg, sizeof(msg));
printf("\n\nsignature:\n");
printArray(sign, sizeof(sign));
printf("\n");
if (!uECC_verify(publicKey, msg, sizeof(msg), sign, curve))
{
printf("\nuECC_verify() failed\n");
}
else
{
printf("\nuECC_verify() succeeded\n");
}
printf("\n/*************************************************************************************************/\n");
return 0;
}
通过运行source.c输出Visual Studio:-
/*************************************************************************************************
Validating the Encrypted hash with the public key and the hash used
Public Key:
[ 148, 49, 144, 80, 185, 77, 185, 14, 186, 168, 164, 110, 123, 192, 55, 219, 184, 133, 153, 65, 144, 169, 175, 171, 203, 225, 88, 134, 51, 199, 254, 215, 237, 144, 141, 137, 80, 190, 25, 35, 33, 136, 248, 190, 114, 60, 128, 34, 155, 157, 83, 68, 187, 154, 137, 9, 51, 112, 155, 54, 88, 104, 82, 138 ]
Msg:
[ 72, 101, 108, 108, 111 ]
signature:
[ 186, 247, 43, 62, 152, 84, 40, 197, 74, 135, 80, 18, 152, 150, 121, 177, 155, 242, 1, 11, 171, 155, 45, 19, 174, 171, 190, 66, 31, 125, 214, 136, 41, 116, 139, 82, 71, 208, 4, 80, 47, 154, 100, 173, 110, 164, 25, 19, 7, 253, 175, 123, 34, 1, 99, 86, 241, 241, 211, 45, 15, 35, 210, 69 ]
uECC_verify() failed
/*************************************************************************************************/
C:\Users\prajwal.bv\source\repos\Crypt_sample1\x64\Debug\Crypt_sample1.exe (process 17160) exited with code 0.
To automatically close the console when debugging stops, enable Tools->Options->Debugging->Automatically close the console when debugging stops.
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我希望运行source.c的输出成功完成uECC_verify()。但是它打印uECC_verify()失败。
答案 0 :(得分:2)
ECDSA签名过程分为两个阶段:
除非另有说明,否则默认情况下,Python ECDSA默认使用SHA-1。
消息“ Hello”的SHA-1摘要采用十六进制编码:f7ff9e8b7bb2e09b70935a5d785e0cc5d9d0abf0
。
这意味着您在调用uECC_verify函数时需要使用此摘要。
验证
在.c代码中用以下代码行替换msg数组:
uint8_t msg[] = { 0xf7, 0xff, 0x9e, 0x8b, 0x7b, 0xb2, 0xe0, 0x9b, 0x70, 0x93, 0x5a, 0x5d, 0x78, 0x5e, 0x0c, 0xc5, 0xd9, 0xd0, 0xab, 0xf0};
然后验证功能成功。
输出
调试控制台中的输出如下所示: