X-Git-Url: https://git.openssl.org/?p=openssl.git;a=blobdiff_plain;f=demos%2Fevp%2Faesgcm.c;fp=demos%2Fevp%2Faesgcm.c;h=12d4192649715c6a8fc5007bf2a7df02d8246216;hp=324d8a55b1481c507c7754fa7f33c30a02bdb737;hb=0f113f3ee4d629ef9a4a30911b22b224772085e5;hpb=22b52164aaed31d6e93dbd2d397ace041360e6aa

diff --git a/demos/evp/aesgcm.c b/demos/evp/aesgcm.c
index 324d8a55b1..12d4192649 100644
--- a/demos/evp/aesgcm.c
+++ b/demos/evp/aesgcm.c
@@ -1,4 +1,5 @@
-/* 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>
@@ -8,107 +9,110 @@
 /* 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();
+}