-/* Simple AES GCM test program, uses the same NIST data used for the FIPS
+/*
+ * Simple AES GCM test program, uses the same NIST data used for the FIPS
* self test but uses the application level EVP APIs.
*/
#include <stdio.h>
/* AES-GCM test data from NIST public test vectors */
static const unsigned char gcm_key[] = {
- 0xee,0xbc,0x1f,0x57,0x48,0x7f,0x51,0x92,0x1c,0x04,0x65,0x66,
- 0x5f,0x8a,0xe6,0xd1,0x65,0x8b,0xb2,0x6d,0xe6,0xf8,0xa0,0x69,
- 0xa3,0x52,0x02,0x93,0xa5,0x72,0x07,0x8f
+ 0xee, 0xbc, 0x1f, 0x57, 0x48, 0x7f, 0x51, 0x92, 0x1c, 0x04, 0x65, 0x66,
+ 0x5f, 0x8a, 0xe6, 0xd1, 0x65, 0x8b, 0xb2, 0x6d, 0xe6, 0xf8, 0xa0, 0x69,
+ 0xa3, 0x52, 0x02, 0x93, 0xa5, 0x72, 0x07, 0x8f
};
static const unsigned char gcm_iv[] = {
- 0x99,0xaa,0x3e,0x68,0xed,0x81,0x73,0xa0,0xee,0xd0,0x66,0x84
+ 0x99, 0xaa, 0x3e, 0x68, 0xed, 0x81, 0x73, 0xa0, 0xee, 0xd0, 0x66, 0x84
};
static const unsigned char gcm_pt[] = {
- 0xf5,0x6e,0x87,0x05,0x5b,0xc3,0x2d,0x0e,0xeb,0x31,0xb2,0xea,
- 0xcc,0x2b,0xf2,0xa5
+ 0xf5, 0x6e, 0x87, 0x05, 0x5b, 0xc3, 0x2d, 0x0e, 0xeb, 0x31, 0xb2, 0xea,
+ 0xcc, 0x2b, 0xf2, 0xa5
};
static const unsigned char gcm_aad[] = {
- 0x4d,0x23,0xc3,0xce,0xc3,0x34,0xb4,0x9b,0xdb,0x37,0x0c,0x43,
- 0x7f,0xec,0x78,0xde
+ 0x4d, 0x23, 0xc3, 0xce, 0xc3, 0x34, 0xb4, 0x9b, 0xdb, 0x37, 0x0c, 0x43,
+ 0x7f, 0xec, 0x78, 0xde
};
static const unsigned char gcm_ct[] = {
- 0xf7,0x26,0x44,0x13,0xa8,0x4c,0x0e,0x7c,0xd5,0x36,0x86,0x7e,
- 0xb9,0xf2,0x17,0x36
+ 0xf7, 0x26, 0x44, 0x13, 0xa8, 0x4c, 0x0e, 0x7c, 0xd5, 0x36, 0x86, 0x7e,
+ 0xb9, 0xf2, 0x17, 0x36
};
static const unsigned char gcm_tag[] = {
- 0x67,0xba,0x05,0x10,0x26,0x2a,0xe4,0x87,0xd7,0x37,0xee,0x62,
- 0x98,0xf7,0x7e,0x0c
+ 0x67, 0xba, 0x05, 0x10, 0x26, 0x2a, 0xe4, 0x87, 0xd7, 0x37, 0xee, 0x62,
+ 0x98, 0xf7, 0x7e, 0x0c
};
void aes_gcm_encrypt(void)
- {
- EVP_CIPHER_CTX *ctx;
- int outlen, tmplen;
- unsigned char outbuf[1024];
- printf("AES GCM Encrypt:\n");
- printf("Plaintext:\n");
- BIO_dump_fp(stdout, gcm_pt, sizeof(gcm_pt));
- ctx = EVP_CIPHER_CTX_new();
- /* Set cipher type and mode */
- EVP_EncryptInit_ex(ctx, EVP_aes_256_gcm(), NULL, NULL, NULL);
- /* Set IV length if default 96 bits is not appropriate */
- EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_IVLEN, sizeof(gcm_iv), NULL);
- /* Initialise key and IV */
- EVP_EncryptInit_ex(ctx, NULL, NULL, gcm_key, gcm_iv);
- /* Zero or more calls to specify any AAD */
- EVP_EncryptUpdate(ctx, NULL, &outlen, gcm_aad, sizeof(gcm_aad));
- /* Encrypt plaintext */
- EVP_EncryptUpdate(ctx, outbuf, &outlen, gcm_pt, sizeof(gcm_pt));
- /* Output encrypted block */
- printf("Ciphertext:\n");
- BIO_dump_fp(stdout, outbuf, outlen);
- /* Finalise: note get no output for GCM */
- EVP_EncryptFinal_ex(ctx, outbuf, &outlen);
- /* Get tag */
- EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_GET_TAG, 16, outbuf);
- /* Output tag */
- printf("Tag:\n");
- BIO_dump_fp(stdout, outbuf, 16);
- EVP_CIPHER_CTX_free(ctx);
- }
+{
+ EVP_CIPHER_CTX *ctx;
+ int outlen, tmplen;
+ unsigned char outbuf[1024];
+ printf("AES GCM Encrypt:\n");
+ printf("Plaintext:\n");
+ BIO_dump_fp(stdout, gcm_pt, sizeof(gcm_pt));
+ ctx = EVP_CIPHER_CTX_new();
+ /* Set cipher type and mode */
+ EVP_EncryptInit_ex(ctx, EVP_aes_256_gcm(), NULL, NULL, NULL);
+ /* Set IV length if default 96 bits is not appropriate */
+ EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_IVLEN, sizeof(gcm_iv), NULL);
+ /* Initialise key and IV */
+ EVP_EncryptInit_ex(ctx, NULL, NULL, gcm_key, gcm_iv);
+ /* Zero or more calls to specify any AAD */
+ EVP_EncryptUpdate(ctx, NULL, &outlen, gcm_aad, sizeof(gcm_aad));
+ /* Encrypt plaintext */
+ EVP_EncryptUpdate(ctx, outbuf, &outlen, gcm_pt, sizeof(gcm_pt));
+ /* Output encrypted block */
+ printf("Ciphertext:\n");
+ BIO_dump_fp(stdout, outbuf, outlen);
+ /* Finalise: note get no output for GCM */
+ EVP_EncryptFinal_ex(ctx, outbuf, &outlen);
+ /* Get tag */
+ EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_GET_TAG, 16, outbuf);
+ /* Output tag */
+ printf("Tag:\n");
+ BIO_dump_fp(stdout, outbuf, 16);
+ EVP_CIPHER_CTX_free(ctx);
+}
void aes_gcm_decrypt(void)
- {
- EVP_CIPHER_CTX *ctx;
- int outlen, tmplen, rv;
- unsigned char outbuf[1024];
- printf("AES GCM Derypt:\n");
- printf("Ciphertext:\n");
- BIO_dump_fp(stdout, gcm_ct, sizeof(gcm_ct));
- ctx = EVP_CIPHER_CTX_new();
- /* Select cipher */
- EVP_DecryptInit_ex(ctx, EVP_aes_256_gcm(), NULL, NULL, NULL);
- /* Set IV length, omit for 96 bits */
- EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_IVLEN, sizeof(gcm_iv), NULL);
- /* Specify key and IV */
- EVP_DecryptInit_ex(ctx, NULL, NULL, gcm_key, gcm_iv);
+{
+ EVP_CIPHER_CTX *ctx;
+ int outlen, tmplen, rv;
+ unsigned char outbuf[1024];
+ printf("AES GCM Derypt:\n");
+ printf("Ciphertext:\n");
+ BIO_dump_fp(stdout, gcm_ct, sizeof(gcm_ct));
+ ctx = EVP_CIPHER_CTX_new();
+ /* Select cipher */
+ EVP_DecryptInit_ex(ctx, EVP_aes_256_gcm(), NULL, NULL, NULL);
+ /* Set IV length, omit for 96 bits */
+ EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_IVLEN, sizeof(gcm_iv), NULL);
+ /* Specify key and IV */
+ EVP_DecryptInit_ex(ctx, NULL, NULL, gcm_key, gcm_iv);
#if 0
- /* Set expected tag value. A restriction in OpenSSL 1.0.1c and earlier
- * required the tag before any AAD or ciphertext */
- EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_TAG, sizeof(gcm_tag), gcm_tag);
+ /*
+ * Set expected tag value. A restriction in OpenSSL 1.0.1c and earlier
+ * required the tag before any AAD or ciphertext
+ */
+ EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_TAG, sizeof(gcm_tag), gcm_tag);
#endif
- /* Zero or more calls to specify any AAD */
- EVP_DecryptUpdate(ctx, NULL, &outlen, gcm_aad, sizeof(gcm_aad));
- /* Decrypt plaintext */
- EVP_DecryptUpdate(ctx, outbuf, &outlen, gcm_ct, sizeof(gcm_ct));
- /* Output decrypted block */
- printf("Plaintext:\n");
- BIO_dump_fp(stdout, outbuf, outlen);
- /* Set expected tag value. Works in OpenSSL 1.0.1d and later */
- EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_TAG, sizeof(gcm_tag), gcm_tag);
- /* Finalise: note get no output for GCM */
- rv = EVP_DecryptFinal_ex(ctx, outbuf, &outlen);
- /* Print out return value. If this is not successful authentication
- * failed and plaintext is not trustworthy.
- */
- printf("Tag Verify %s\n", rv > 0 ? "Successful!" : "Failed!");
- EVP_CIPHER_CTX_free(ctx);
- }
+ /* Zero or more calls to specify any AAD */
+ EVP_DecryptUpdate(ctx, NULL, &outlen, gcm_aad, sizeof(gcm_aad));
+ /* Decrypt plaintext */
+ EVP_DecryptUpdate(ctx, outbuf, &outlen, gcm_ct, sizeof(gcm_ct));
+ /* Output decrypted block */
+ printf("Plaintext:\n");
+ BIO_dump_fp(stdout, outbuf, outlen);
+ /* Set expected tag value. Works in OpenSSL 1.0.1d and later */
+ EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_TAG, sizeof(gcm_tag), gcm_tag);
+ /* Finalise: note get no output for GCM */
+ rv = EVP_DecryptFinal_ex(ctx, outbuf, &outlen);
+ /*
+ * Print out return value. If this is not successful authentication
+ * failed and plaintext is not trustworthy.
+ */
+ printf("Tag Verify %s\n", rv > 0 ? "Successful!" : "Failed!");
+ EVP_CIPHER_CTX_free(ctx);
+}
int main(int argc, char **argv)
- {
- aes_gcm_encrypt();
- aes_gcm_decrypt();
- }
+{
+ aes_gcm_encrypt();
+ aes_gcm_decrypt();
+}
projects / openssl.git / blobdiff