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Add a test case for zero len plain text

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This commit is contained in:
Takashi Kojo
2020-11-04 11:20:18 +09:00
parent 417ff1b0f2
commit eab3bf9ab4
1 changed files with 52 additions and 0 deletions
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52
tests/api.c
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@ -37319,6 +37319,55 @@ static void test_wolfssl_EVP_aes_gcm_AAD_2_parts(void)
#endif
}
#if defined(OPENSSL_EXTRA) && !defined(NO_AES) && defined(HAVE_AESGCM) && \
!defined(HAVE_SELFTEST) && !defined(HAVE_FIPS)
static void test_wolfssl_EVP_aes_gcm_zeroLen()
{
/* Zero length plain text */
byte key[] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; /* align */
byte iv[] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; /* align */
byte plaintxt[0];
int ivSz = 12;
int plaintxtSz = 0;
unsigned char tag[16];
unsigned char tag_kat[] = {0x53,0x0f,0x8a,0xfb,0xc7,0x45,0x36,0xb9,0xa9,0x63,0xb4,0xf1,0xc4,0xcb,0x73,0x8b};
byte ciphertxt[AES_BLOCK_SIZE * 4] = {0};
byte decryptedtxt[AES_BLOCK_SIZE * 4] = {0};
int ciphertxtSz = 0;
int decryptedtxtSz = 0;
int len = 0;
EVP_CIPHER_CTX *en = EVP_CIPHER_CTX_new();
EVP_CIPHER_CTX *de = EVP_CIPHER_CTX_new();
AssertIntEQ(1, EVP_EncryptInit_ex(en, EVP_aes_256_gcm(), NULL, key, iv));
AssertIntEQ(1, EVP_CIPHER_CTX_ctrl(en, EVP_CTRL_GCM_SET_IVLEN, ivSz, NULL));
AssertIntEQ(1, EVP_EncryptUpdate(en, NULL, &ciphertxtSz , plaintxt, plaintxtSz));
AssertIntEQ(1, EVP_EncryptFinal_ex(en, ciphertxt, &len));
ciphertxtSz += len;
AssertIntEQ(1, EVP_CIPHER_CTX_ctrl(en, EVP_CTRL_GCM_GET_TAG, 16, tag));
AssertIntEQ(1, EVP_CIPHER_CTX_cleanup(en));
AssertIntEQ(0, ciphertxtSz);
AssertIntEQ(0, XMEMCMP(tag, tag_kat, sizeof(tag)));
EVP_CIPHER_CTX_init(de);
AssertIntEQ(1, EVP_DecryptInit_ex(de, EVP_aes_256_gcm(), NULL, key, iv));
AssertIntEQ(1, EVP_CIPHER_CTX_ctrl(de, EVP_CTRL_GCM_SET_IVLEN, ivSz, NULL));
AssertIntEQ(1, EVP_DecryptUpdate(de, NULL, &len, ciphertxt, len));
decryptedtxtSz = len;
AssertIntEQ(1, EVP_CIPHER_CTX_ctrl(de, EVP_CTRL_GCM_SET_TAG, 16, tag));
AssertIntEQ(1, EVP_DecryptFinal_ex(de, decryptedtxt, &len));
decryptedtxtSz += len;
AssertIntEQ(0, decryptedtxtSz);
EVP_CIPHER_CTX_free(en);
EVP_CIPHER_CTX_free(de);
}
#endif
static void test_wolfssl_EVP_aes_gcm(void)
{
#if defined(OPENSSL_EXTRA) && !defined(NO_AES) && defined(HAVE_AESGCM) && \
@ -37425,6 +37474,9 @@ static void test_wolfssl_EVP_aes_gcm(void)
AssertIntEQ(0, len);
AssertIntEQ(wolfSSL_EVP_CIPHER_CTX_cleanup(&de[i]), 1);
}
test_wolfssl_EVP_aes_gcm_zeroLen();
printf(resultFmt, passed);
#endif /* OPENSSL_EXTRA && !NO_AES && HAVE_AESGCM */