当我执行以下操作时,我遇到问题:
- 使用 python 创建 ECDSA SECP256k1 曲线的公钥对并将其打印在终端上。
- 将密钥对复制粘贴到 Python 脚本和 Visual Studio 中(使用 micro-ecc 库的 C 编码)。因此,每次运行代码时都不会生成新密钥。
- 使用私钥在 Python 中签署消息(“Hello”),并在终端上打印签名和消息。我知道必须首先使用标准哈希算法(例如 SHA256)对消息进行哈希处理,但在本例中,我直接使用消息进行签名。
- 将签名和相同的消息(哈希)复制到 Visual Studio 中。
- 当我在 Visual Studio 中调用验证 API 时,尽管使用相同的公钥、消息、签名和曲线,验证还是失败了。
我正在使用的库:
- Visual Studio 中用于 C 的微型 ecchttps://github.com/kmackay/micro-ecc
- 用于 python 的 ECDSAhttps://github.com/warner/python-ecdsa
我测试过并承保的其他事项:
- 对于相同的密钥对(例如(sk,vk)),在 python 中进行签名和验证都可以正常工作。
- 对于相同的密钥对(例如(sk,vk)),在 Visual Studio 中进行签名和验证都可以正常工作。
- 在 Visual Studio 中使用 microECC 进行签名并在 python 中使用 ECDSA 进行验证失败,使用 ECDSA 进行签名并在 python 中使用 microECC 进行验证也失败。
- 我确信从终端粘贴的密钥复制实际上是预期的密钥,因为我已经从复制的签名密钥中交叉验证了验证密钥并且它是匹配的。
首先,我通过运行此脚本生成密钥
生成密钥.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]
将私钥复制粘贴到 Sign.py python 脚本中并生成签名和公钥
我使用“Hello”作为创建签名的消息
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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我预计运行 source.c 的输出是 uECC_verify() 成功。但它打印 uECC_verify() 失败。