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-rw-r--r--demos/evp/aesccm.c167
1 files changed, 83 insertions, 84 deletions
diff --git a/demos/evp/aesccm.c b/demos/evp/aesccm.c
index e8897fbbc1..1810a51fc8 100644
--- a/demos/evp/aesccm.c
+++ b/demos/evp/aesccm.c
@@ -1,4 +1,5 @@
-/* Simple AES CCM test program, uses the same NIST data used for the FIPS
+/*
+ * Simple AES CCM test program, uses the same NIST data used for the FIPS
* self test but uses the application level EVP APIs.
*/
#include <stdio.h>
@@ -8,108 +9,106 @@
/* AES-CCM test data from NIST public test vectors */
static const unsigned char ccm_key[] = {
- 0xce,0xb0,0x09,0xae,0xa4,0x45,0x44,0x51,0xfe,0xad,0xf0,0xe6,
- 0xb3,0x6f,0x45,0x55,0x5d,0xd0,0x47,0x23,0xba,0xa4,0x48,0xe8
+ 0xce, 0xb0, 0x09, 0xae, 0xa4, 0x45, 0x44, 0x51, 0xfe, 0xad, 0xf0, 0xe6,
+ 0xb3, 0x6f, 0x45, 0x55, 0x5d, 0xd0, 0x47, 0x23, 0xba, 0xa4, 0x48, 0xe8
};
static const unsigned char ccm_nonce[] = {
- 0x76,0x40,0x43,0xc4,0x94,0x60,0xb7
+ 0x76, 0x40, 0x43, 0xc4, 0x94, 0x60, 0xb7
};
static const unsigned char ccm_adata[] = {
- 0x6e,0x80,0xdd,0x7f,0x1b,0xad,0xf3,0xa1,0xc9,0xab,0x25,0xc7,
- 0x5f,0x10,0xbd,0xe7,0x8c,0x23,0xfa,0x0e,0xb8,0xf9,0xaa,0xa5,
- 0x3a,0xde,0xfb,0xf4,0xcb,0xf7,0x8f,0xe4
+ 0x6e, 0x80, 0xdd, 0x7f, 0x1b, 0xad, 0xf3, 0xa1, 0xc9, 0xab, 0x25, 0xc7,
+ 0x5f, 0x10, 0xbd, 0xe7, 0x8c, 0x23, 0xfa, 0x0e, 0xb8, 0xf9, 0xaa, 0xa5,
+ 0x3a, 0xde, 0xfb, 0xf4, 0xcb, 0xf7, 0x8f, 0xe4
};
static const unsigned char ccm_pt[] = {
- 0xc8,0xd2,0x75,0xf9,0x19,0xe1,0x7d,0x7f,0xe6,0x9c,0x2a,0x1f,
- 0x58,0x93,0x9d,0xfe,0x4d,0x40,0x37,0x91,0xb5,0xdf,0x13,0x10
+ 0xc8, 0xd2, 0x75, 0xf9, 0x19, 0xe1, 0x7d, 0x7f, 0xe6, 0x9c, 0x2a, 0x1f,
+ 0x58, 0x93, 0x9d, 0xfe, 0x4d, 0x40, 0x37, 0x91, 0xb5, 0xdf, 0x13, 0x10
};
static const unsigned char ccm_ct[] = {
- 0x8a,0x0f,0x3d,0x82,0x29,0xe4,0x8e,0x74,0x87,0xfd,0x95,0xa2,
- 0x8a,0xd3,0x92,0xc8,0x0b,0x36,0x81,0xd4,0xfb,0xc7,0xbb,0xfd
+ 0x8a, 0x0f, 0x3d, 0x82, 0x29, 0xe4, 0x8e, 0x74, 0x87, 0xfd, 0x95, 0xa2,
+ 0x8a, 0xd3, 0x92, 0xc8, 0x0b, 0x36, 0x81, 0xd4, 0xfb, 0xc7, 0xbb, 0xfd
};
static const unsigned char ccm_tag[] = {
- 0x2d,0xd6,0xef,0x1c,0x45,0xd4,0xcc,0xb7,0x23,0xdc,0x07,0x44,
- 0x14,0xdb,0x50,0x6d
+ 0x2d, 0xd6, 0xef, 0x1c, 0x45, 0xd4, 0xcc, 0xb7, 0x23, 0xdc, 0x07, 0x44,
+ 0x14, 0xdb, 0x50, 0x6d
};
void aes_ccm_encrypt(void)
- {
- EVP_CIPHER_CTX *ctx;
- int outlen, tmplen;
- unsigned char outbuf[1024];
- printf("AES CCM Encrypt:\n");
- printf("Plaintext:\n");
- BIO_dump_fp(stdout, ccm_pt, sizeof(ccm_pt));
- ctx = EVP_CIPHER_CTX_new();
- /* Set cipher type and mode */
- EVP_EncryptInit_ex(ctx, EVP_aes_192_ccm(), NULL, NULL, NULL);
- /* Set nonce length if default 96 bits is not appropriate */
- EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_CCM_SET_IVLEN, sizeof(ccm_nonce), NULL);
- /* Set tag length */
- EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_CCM_SET_TAG, sizeof(ccm_tag), NULL);
- /* Initialise key and IV */
- EVP_EncryptInit_ex(ctx, NULL, NULL, ccm_key, ccm_nonce);
- /* Set plaintext length: only needed if AAD is used */
- EVP_EncryptUpdate(ctx, NULL, &outlen, NULL, sizeof(ccm_pt));
- /* Zero or one call to specify any AAD */
- EVP_EncryptUpdate(ctx, NULL, &outlen, ccm_adata, sizeof(ccm_adata));
- /* Encrypt plaintext: can only be called once */
- EVP_EncryptUpdate(ctx, outbuf, &outlen, ccm_pt, sizeof(ccm_pt));
- /* Output encrypted block */
- printf("Ciphertext:\n");
- BIO_dump_fp(stdout, outbuf, outlen);
- /* Finalise: note get no output for CCM */
- EVP_EncryptFinal_ex(ctx, outbuf, &outlen);
- /* Get tag */
- EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_CCM_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 CCM Encrypt:\n");
+ printf("Plaintext:\n");
+ BIO_dump_fp(stdout, ccm_pt, sizeof(ccm_pt));
+ ctx = EVP_CIPHER_CTX_new();
+ /* Set cipher type and mode */
+ EVP_EncryptInit_ex(ctx, EVP_aes_192_ccm(), NULL, NULL, NULL);
+ /* Set nonce length if default 96 bits is not appropriate */
+ EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_CCM_SET_IVLEN, sizeof(ccm_nonce), NULL);
+ /* Set tag length */
+ EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_CCM_SET_TAG, sizeof(ccm_tag), NULL);
+ /* Initialise key and IV */
+ EVP_EncryptInit_ex(ctx, NULL, NULL, ccm_key, ccm_nonce);
+ /* Set plaintext length: only needed if AAD is used */
+ EVP_EncryptUpdate(ctx, NULL, &outlen, NULL, sizeof(ccm_pt));
+ /* Zero or one call to specify any AAD */
+ EVP_EncryptUpdate(ctx, NULL, &outlen, ccm_adata, sizeof(ccm_adata));
+ /* Encrypt plaintext: can only be called once */
+ EVP_EncryptUpdate(ctx, outbuf, &outlen, ccm_pt, sizeof(ccm_pt));
+ /* Output encrypted block */
+ printf("Ciphertext:\n");
+ BIO_dump_fp(stdout, outbuf, outlen);
+ /* Finalise: note get no output for CCM */
+ EVP_EncryptFinal_ex(ctx, outbuf, &outlen);
+ /* Get tag */
+ EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_CCM_GET_TAG, 16, outbuf);
+ /* Output tag */
+ printf("Tag:\n");
+ BIO_dump_fp(stdout, outbuf, 16);
+ EVP_CIPHER_CTX_free(ctx);
+}
void aes_ccm_decrypt(void)
- {
- EVP_CIPHER_CTX *ctx;
- int outlen, tmplen, rv;
- unsigned char outbuf[1024];
- printf("AES CCM Derypt:\n");
- printf("Ciphertext:\n");
- BIO_dump_fp(stdout, ccm_ct, sizeof(ccm_ct));
- ctx = EVP_CIPHER_CTX_new();
- /* Select cipher */
- EVP_DecryptInit_ex(ctx, EVP_aes_192_ccm(), NULL, NULL, NULL);
- /* Set nonce length, omit for 96 bits */
- EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_CCM_SET_IVLEN, sizeof(ccm_nonce), NULL);
- /* Set expected tag value */
- EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_CCM_SET_TAG,
- sizeof(ccm_tag), (void *)ccm_tag);
- /* Specify key and IV */
- EVP_DecryptInit_ex(ctx, NULL, NULL, ccm_key, ccm_nonce);
- /* Set ciphertext length: only needed if we have AAD */
- EVP_DecryptUpdate(ctx, NULL, &outlen, NULL, sizeof(ccm_ct));
- /* Zero or one call to specify any AAD */
- EVP_DecryptUpdate(ctx, NULL, &outlen, ccm_adata, sizeof(ccm_adata));
- /* Decrypt plaintext, verify tag: can only be called once */
- rv = EVP_DecryptUpdate(ctx, outbuf, &outlen, ccm_ct, sizeof(ccm_ct));
- /* Output decrypted block: if tag verify failed we get nothing */
- if (rv > 0)
- {
- printf("Plaintext:\n");
- BIO_dump_fp(stdout, outbuf, outlen);
- }
- else
- printf("Plaintext not available: tag verify failed.\n");
- EVP_CIPHER_CTX_free(ctx);
- }
+{
+ EVP_CIPHER_CTX *ctx;
+ int outlen, tmplen, rv;
+ unsigned char outbuf[1024];
+ printf("AES CCM Derypt:\n");
+ printf("Ciphertext:\n");
+ BIO_dump_fp(stdout, ccm_ct, sizeof(ccm_ct));
+ ctx = EVP_CIPHER_CTX_new();
+ /* Select cipher */
+ EVP_DecryptInit_ex(ctx, EVP_aes_192_ccm(), NULL, NULL, NULL);
+ /* Set nonce length, omit for 96 bits */
+ EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_CCM_SET_IVLEN, sizeof(ccm_nonce), NULL);
+ /* Set expected tag value */
+ EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_CCM_SET_TAG,
+ sizeof(ccm_tag), (void *)ccm_tag);
+ /* Specify key and IV */
+ EVP_DecryptInit_ex(ctx, NULL, NULL, ccm_key, ccm_nonce);
+ /* Set ciphertext length: only needed if we have AAD */
+ EVP_DecryptUpdate(ctx, NULL, &outlen, NULL, sizeof(ccm_ct));
+ /* Zero or one call to specify any AAD */
+ EVP_DecryptUpdate(ctx, NULL, &outlen, ccm_adata, sizeof(ccm_adata));
+ /* Decrypt plaintext, verify tag: can only be called once */
+ rv = EVP_DecryptUpdate(ctx, outbuf, &outlen, ccm_ct, sizeof(ccm_ct));
+ /* Output decrypted block: if tag verify failed we get nothing */
+ if (rv > 0) {
+ printf("Plaintext:\n");
+ BIO_dump_fp(stdout, outbuf, outlen);
+ } else
+ printf("Plaintext not available: tag verify failed.\n");
+ EVP_CIPHER_CTX_free(ctx);
+}
int main(int argc, char **argv)
- {
- aes_ccm_encrypt();
- aes_ccm_decrypt();
- }
+{
+ aes_ccm_encrypt();
+ aes_ccm_decrypt();
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-05 10:15:39 +0000