unsigned char app_b1[SHA256_DIGEST_LENGTH] = {
0xba,0x78,0x16,0xbf,0x8f,0x01,0xcf,0xea,
0x41,0x41,0x40,0xde,0x5d,0xae,0x22,0x23,
unsigned char app_b1[SHA256_DIGEST_LENGTH] = {
0xba,0x78,0x16,0xbf,0x8f,0x01,0xcf,0xea,
0x41,0x41,0x40,0xde,0x5d,0xae,0x22,0x23,