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This commit is contained in:
Wolfgang Hottgenroth 2021-02-08 18:16:47 +01:00
parent 9bd521eb2b
commit f5952d840f
Signed by: wn
GPG Key ID: 6C1E5E531E0D5D7F
1 changed files with 75 additions and 0 deletions
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75
sink/sink20169.c
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@ -59,12 +59,87 @@ int main() {
memcpy(receivedHash, buf.s.hash, SHA256_BLOCK_SIZE); memcpy(receivedHash, buf.s.hash, SHA256_BLOCK_SIZE);
memcpy(buf.s.hash, devices[i].sharedSecret, SHA256_BLOCK_SIZE); memcpy(buf.s.hash, devices[i].sharedSecret, SHA256_BLOCK_SIZE);
printf("recv. hash, 1. half is %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
receivedHash[0],
receivedHash[1],
receivedHash[2],
receivedHash[3],
receivedHash[4],
receivedHash[5],
receivedHash[6],
receivedHash[7],
receivedHash[8],
receivedHash[9],
receivedHash[10],
receivedHash[11],
receivedHash[12],
receivedHash[13],
receivedHash[14],
receivedHash[15]
);
printf("recv. hash, 2. half is %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
receivedHash[16],
receivedHash[17],
receivedHash[18],
receivedHash[19],
receivedHash[20],
receivedHash[21],
receivedHash[22],
receivedHash[23],
receivedHash[24],
receivedHash[25],
receivedHash[26],
receivedHash[27],
receivedHash[28],
receivedHash[29],
receivedHash[30],
receivedHash[31]
);
SHA256_CTX ctx; SHA256_CTX ctx;
uint8_t calculatedHash[SHA256_BLOCK_SIZE]; uint8_t calculatedHash[SHA256_BLOCK_SIZE];
sha256_init(&ctx); sha256_init(&ctx);
sha256_update(&ctx, buf.b, sizeof(buf.b)); sha256_update(&ctx, buf.b, sizeof(buf.b));
sha256_final(&ctx, calculatedHash); sha256_final(&ctx, calculatedHash);
printf("calc. hash, 1. half is %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
calculatedHash[0],
calculatedHash[1],
calculatedHash[2],
calculatedHash[3],
calculatedHash[4],
calculatedHash[5],
calculatedHash[6],
calculatedHash[7],
calculatedHash[8],
calculatedHash[9],
calculatedHash[10],
calculatedHash[11],
calculatedHash[12],
calculatedHash[13],
calculatedHash[14],
calculatedHash[15]
);
printf("calc. hash, 2. half is %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
calculatedHash[16],
calculatedHash[17],
calculatedHash[18],
calculatedHash[19],
calculatedHash[20],
calculatedHash[21],
calculatedHash[22],
calculatedHash[23],
calculatedHash[24],
calculatedHash[25],
calculatedHash[26],
calculatedHash[27],
calculatedHash[28],
calculatedHash[29],
calculatedHash[30],
calculatedHash[31]
);
if (memcmp(receivedHash, calculatedHash, SHA256_BLOCK_SIZE) != 0) { if (memcmp(receivedHash, calculatedHash, SHA256_BLOCK_SIZE) != 0) {
printf("Invalid hash\n"); printf("Invalid hash\n");
} }