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GCM and CCM test support

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Add code to support GCM an CCM modes in evp_test. On encrypt this
will compare the expected ciphertext and tag. On decrypt it will
compare the expected plaintext: tag comparison is done internally.

Add a simple CCM test case and convert all tests from crypto/modes/gcm128.c
(cherry picked from commit 15652f9825)
This commit is contained in:
Dr. Stephen Henson
2013-03-06 15:45:15 +00:00
parent 0eff7c7c88
commit ec19082ecc
2 changed files with 219 additions and 14 deletions
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210
crypto/evp/evp_test.c
View File

@@ -137,11 +137,13 @@ static void test1(const EVP_CIPHER *c,const unsigned char *key,int kn,
const unsigned char *iv,int in,
const unsigned char *plaintext,int pn,
const unsigned char *ciphertext,int cn,
const unsigned char *aad,int an,
const unsigned char *tag,int tn,
int encdec)
{
EVP_CIPHER_CTX ctx;
unsigned char out[4096];
int outl,outl2;
int outl,outl2,mode;
printf("Testing cipher %s%s\n",EVP_CIPHER_name(c),
(encdec == 1 ? "(encrypt)" : (encdec == 0 ? "(decrypt)" : "(encrypt/decrypt)")));
@@ -150,17 +152,87 @@ static void test1(const EVP_CIPHER *c,const unsigned char *key,int kn,
hexdump(stdout,"IV",iv,in);
hexdump(stdout,"Plaintext",plaintext,pn);
hexdump(stdout,"Ciphertext",ciphertext,cn);
if(kn != c->key_len)
if (an)
hexdump(stdout,"AAD",aad,an);
if (tn)
hexdump(stdout,"Tag",tag,tn);
mode = EVP_CIPHER_mode(c);
if(kn != EVP_CIPHER_key_length(c))
{
fprintf(stderr,"Key length doesn't match, got %d expected %lu\n",kn,
(unsigned long)c->key_len);
(unsigned long)EVP_CIPHER_key_length(c));
test1_exit(5);
}
EVP_CIPHER_CTX_init(&ctx);
if (encdec != 0)
{
if(!EVP_EncryptInit_ex(&ctx,c,NULL,key,iv))
if (mode == EVP_CIPH_GCM_MODE)
{
if(!EVP_EncryptInit_ex(&ctx,c,NULL,NULL,NULL))
{
fprintf(stderr,"EncryptInit failed\n");
ERR_print_errors_fp(stderr);
test1_exit(10);
}
if(!EVP_CIPHER_CTX_ctrl(&ctx, EVP_CTRL_GCM_SET_IVLEN, in, NULL))
{
fprintf(stderr,"IV length set failed\n");
ERR_print_errors_fp(stderr);
test1_exit(11);
}
if(!EVP_EncryptInit_ex(&ctx,NULL,NULL,key,iv))
{
fprintf(stderr,"Key/IV set failed\n");
ERR_print_errors_fp(stderr);
test1_exit(12);
}
if (an && !EVP_EncryptUpdate(&ctx,NULL,&outl,aad,an))
{
fprintf(stderr,"AAD set failed\n");
ERR_print_errors_fp(stderr);
test1_exit(13);
}
}
else if (mode == EVP_CIPH_CCM_MODE)
{
if(!EVP_EncryptInit_ex(&ctx,c,NULL,NULL,NULL))
{
fprintf(stderr,"EncryptInit failed\n");
ERR_print_errors_fp(stderr);
test1_exit(10);
}
if(!EVP_CIPHER_CTX_ctrl(&ctx, EVP_CTRL_CCM_SET_IVLEN, in, NULL))
{
fprintf(stderr,"IV length set failed\n");
ERR_print_errors_fp(stderr);
test1_exit(11);
}
if(!EVP_CIPHER_CTX_ctrl(&ctx, EVP_CTRL_CCM_SET_TAG, tn, NULL))
{
fprintf(stderr,"Tag length set failed\n");
ERR_print_errors_fp(stderr);
test1_exit(11);
}
if(!EVP_EncryptInit_ex(&ctx,NULL,NULL,key,iv))
{
fprintf(stderr,"Key/IV set failed\n");
ERR_print_errors_fp(stderr);
test1_exit(12);
}
if (!EVP_EncryptUpdate(&ctx,NULL,&outl,NULL,pn))
{
fprintf(stderr,"Plaintext length set failed\n");
ERR_print_errors_fp(stderr);
test1_exit(12);
}
if (an && !EVP_EncryptUpdate(&ctx,NULL,&outl,aad,an))
{
fprintf(stderr,"AAD set failed\n");
ERR_print_errors_fp(stderr);
test1_exit(13);
}
}
else if(!EVP_EncryptInit_ex(&ctx,c,NULL,key,iv))
{
fprintf(stderr,"EncryptInit failed\n");
ERR_print_errors_fp(stderr);
@@ -195,11 +267,103 @@ static void test1(const EVP_CIPHER *c,const unsigned char *key,int kn,
hexdump(stderr,"Expected",ciphertext,cn);
test1_exit(9);
}
if (mode == EVP_CIPH_GCM_MODE || mode == EVP_CIPH_CCM_MODE)
{
unsigned char rtag[16];
/* Note: EVP_CTRL_CCM_GET_TAG has same value as
* EVP_CTRL_GCM_GET_TAG
*/
if (!EVP_CIPHER_CTX_ctrl(&ctx, EVP_CTRL_GCM_GET_TAG, tn, rtag))
{
fprintf(stderr,"Get tag failed\n");
ERR_print_errors_fp(stderr);
test1_exit(14);
}
if (memcmp(rtag, tag, tn))
{
fprintf(stderr,"Tag mismatch\n");
hexdump(stderr,"Got",rtag,tn);
hexdump(stderr,"Expected",tag,tn);
test1_exit(9);
}
}
}
if (encdec <= 0)
{
if(!EVP_DecryptInit_ex(&ctx,c,NULL,key,iv))
if (mode == EVP_CIPH_GCM_MODE)
{
if(!EVP_DecryptInit_ex(&ctx,c,NULL,NULL,NULL))
{
fprintf(stderr,"EncryptInit failed\n");
ERR_print_errors_fp(stderr);
test1_exit(10);
}
if(!EVP_CIPHER_CTX_ctrl(&ctx, EVP_CTRL_GCM_SET_IVLEN, in, NULL))
{
fprintf(stderr,"IV length set failed\n");
ERR_print_errors_fp(stderr);
test1_exit(11);
}
if(!EVP_DecryptInit_ex(&ctx,NULL,NULL,key,iv))
{
fprintf(stderr,"Key/IV set failed\n");
ERR_print_errors_fp(stderr);
test1_exit(12);
}
if (!EVP_CIPHER_CTX_ctrl(&ctx, EVP_CTRL_GCM_SET_TAG, tn, (void *)tag))
{
fprintf(stderr,"Set tag failed\n");
ERR_print_errors_fp(stderr);
test1_exit(14);
}
if (an && !EVP_DecryptUpdate(&ctx,NULL,&outl,aad,an))
{
fprintf(stderr,"AAD set failed\n");
ERR_print_errors_fp(stderr);
test1_exit(13);
}
}
else if (mode == EVP_CIPH_CCM_MODE)
{
if(!EVP_DecryptInit_ex(&ctx,c,NULL,NULL,NULL))
{
fprintf(stderr,"DecryptInit failed\n");
ERR_print_errors_fp(stderr);
test1_exit(10);
}
if(!EVP_CIPHER_CTX_ctrl(&ctx, EVP_CTRL_CCM_SET_IVLEN, in, NULL))
{
fprintf(stderr,"IV length set failed\n");
ERR_print_errors_fp(stderr);
test1_exit(11);
}
if(!EVP_CIPHER_CTX_ctrl(&ctx, EVP_CTRL_CCM_SET_TAG, tn, (void *)tag))
{
fprintf(stderr,"Tag length set failed\n");
ERR_print_errors_fp(stderr);
test1_exit(11);
}
if(!EVP_DecryptInit_ex(&ctx,NULL,NULL,key,iv))
{
fprintf(stderr,"Key/Nonce set failed\n");
ERR_print_errors_fp(stderr);
test1_exit(12);
}
if (!EVP_DecryptUpdate(&ctx,NULL,&outl,NULL,pn))
{
fprintf(stderr,"Plaintext length set failed\n");
ERR_print_errors_fp(stderr);
test1_exit(12);
}
if (an && !EVP_EncryptUpdate(&ctx,NULL,&outl,aad,an))
{
fprintf(stderr,"AAD set failed\n");
ERR_print_errors_fp(stderr);
test1_exit(13);
}
}
else if(!EVP_DecryptInit_ex(&ctx,c,NULL,key,iv))
{
fprintf(stderr,"DecryptInit failed\n");
ERR_print_errors_fp(stderr);
@@ -213,7 +377,7 @@ static void test1(const EVP_CIPHER *c,const unsigned char *key,int kn,
ERR_print_errors_fp(stderr);
test1_exit(6);
}
if(!EVP_DecryptFinal_ex(&ctx,out+outl,&outl2))
if(mode != EVP_CIPH_CCM_MODE && !EVP_DecryptFinal_ex(&ctx,out+outl,&outl2))
{
fprintf(stderr,"DecryptFinal failed\n");
ERR_print_errors_fp(stderr);
@@ -245,6 +409,8 @@ static int test_cipher(const char *cipher,const unsigned char *key,int kn,
const unsigned char *iv,int in,
const unsigned char *plaintext,int pn,
const unsigned char *ciphertext,int cn,
const unsigned char *aad,int an,
const unsigned char *tag,int tn,
int encdec)
{
const EVP_CIPHER *c;
@@ -253,7 +419,7 @@ static int test_cipher(const char *cipher,const unsigned char *key,int kn,
if(!c)
return 0;
test1(c,key,kn,iv,in,plaintext,pn,ciphertext,cn,encdec);
test1(c,key,kn,iv,in,plaintext,pn,ciphertext,cn,aad,an,tag,tn,encdec);
return 1;
}
@@ -366,9 +532,9 @@ int main(int argc,char **argv)
char line[4096];
char *p;
char *cipher;
unsigned char *iv,*key,*plaintext,*ciphertext;
unsigned char *iv,*key,*plaintext,*ciphertext,*aad,*tag;
int encdec;
int kn,in,pn,cn;
int kn,in,pn,cn,an,tn;
if(!fgets((char *)line,sizeof line,f))
break;
@@ -381,19 +547,35 @@ int main(int argc,char **argv)
plaintext=ustrsep(&p,":");
ciphertext=ustrsep(&p,":");
if (p[-1] == '\n') {
p[-1] = '\0';
encdec = -1;
p[-1] = '\0';
tag=aad=NULL;
an=tn=0;
} else {
encdec = atoi(sstrsep(&p,"\n"));
aad=ustrsep(&p,":");
tag=ustrsep(&p,":");
if (tag == NULL) {
p = (char *)aad;
tag=aad=NULL;
an=tn=0;
}
if (p [-1] == '\n') {
encdec = -1;
p[-1] = '\0';
} else
encdec = atoi(sstrsep(&p,"\n"));
}
kn=convert(key);
in=convert(iv);
pn=convert(plaintext);
cn=convert(ciphertext);
if (aad) {
an=convert(aad);
tn=convert(tag);
}
if(!test_cipher(cipher,key,kn,iv,in,plaintext,pn,ciphertext,cn,encdec)
if(!test_cipher(cipher,key,kn,iv,in,plaintext,pn,ciphertext,cn,aad,an,tag,tn,encdec)
&& !test_digest(cipher,plaintext,pn,ciphertext,cn))
{
#ifdef OPENSSL_NO_AES