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Merge pull request #421 from ejohnstown/limit-country-code 

Limit Country Name size
This commit is contained in:
toddouska 2016-05-19 16:05:15 -07:00
parent 1bb5c48080 bae0fe9b63
commit 504081e602
4 changed files with 40 additions and 27 deletions
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62
wolfcrypt/src/asn.c
View File

@ -6717,6 +6717,14 @@ static int SetName(byte* output, word32 outputSz, CertName* name)
continue;
}
/* Restrict country code size */
if (i == 0 && strLen != CTC_COUNTRY_SIZE) {
#ifdef WOLFSSL_SMALL_STACK
XFREE(names, NULL, DYNAMIC_TYPE_TMP_BUFFER);
#endif
return ASN_COUNTRY_SIZE_E;
}
secondSz = SetLength(strLen, secondLen);
thisLen += secondSz;
if (email) {
@ -6850,7 +6858,7 @@ static int EncodeCert(Cert* cert, DerCert* der, RsaKey* rsaKey, ecc_key* eccKey,
/* signature algo */
der->sigAlgoSz = SetAlgoID(cert->sigType, der->sigAlgo, oidSigType, 0);
if (der->sigAlgoSz == 0)
if (der->sigAlgoSz <= 0)
return ALGO_ID_E;
/* public key */
@ -6899,7 +6907,7 @@ static int EncodeCert(Cert* cert, DerCert* der, RsaKey* rsaKey, ecc_key* eccKey,
/* date validity copy ? */
if (cert->beforeDateSz && cert->afterDateSz) {
der->validitySz = CopyValidity(der->validity, cert);
if (der->validitySz == 0)
if (der->validitySz <= 0)
return DATE_E;
}
#endif
@ -6907,19 +6915,19 @@ static int EncodeCert(Cert* cert, DerCert* der, RsaKey* rsaKey, ecc_key* eccKey,
/* date validity */
if (der->validitySz == 0) {
der->validitySz = SetValidity(der->validity, cert->daysValid);
if (der->validitySz == 0)
if (der->validitySz <= 0)
return DATE_E;
}
/* subject name */
der->subjectSz = SetName(der->subject, sizeof(der->subject), &cert->subject);
if (der->subjectSz == 0)
if (der->subjectSz <= 0)
return SUBJECT_E;
/* issuer name */
der->issuerSz = SetName(der->issuer, sizeof(der->issuer), cert->selfSigned ?
&cert->subject : &cert->issuer);
if (der->issuerSz == 0)
if (der->issuerSz <= 0)
return ISSUER_E;
/* set the extensions */
@ -6928,7 +6936,7 @@ static int EncodeCert(Cert* cert, DerCert* der, RsaKey* rsaKey, ecc_key* eccKey,
/* CA */
if (cert->isCA) {
der->caSz = SetCa(der->ca, sizeof(der->ca));
if (der->caSz == 0)
if (der->caSz <= 0)
return CA_TRUE_E;
der->extensionsSz += der->caSz;
@ -6941,7 +6949,7 @@ static int EncodeCert(Cert* cert, DerCert* der, RsaKey* rsaKey, ecc_key* eccKey,
if (cert->altNamesSz) {
der->altNamesSz = SetAltNames(der->altNames, sizeof(der->altNames),
cert->altNames, cert->altNamesSz);
if (der->altNamesSz == 0)
if (der->altNamesSz <= 0)
return ALT_NAME_E;
der->extensionsSz += der->altNamesSz;
@ -6959,7 +6967,7 @@ static int EncodeCert(Cert* cert, DerCert* der, RsaKey* rsaKey, ecc_key* eccKey,
der->skidSz = SetSKID(der->skid, sizeof(der->skid),
cert->skid, cert->skidSz);
if (der->skidSz == 0)
if (der->skidSz <= 0)
return SKID_E;
der->extensionsSz += der->skidSz;
@ -6975,7 +6983,7 @@ static int EncodeCert(Cert* cert, DerCert* der, RsaKey* rsaKey, ecc_key* eccKey,
der->akidSz = SetAKID(der->akid, sizeof(der->akid),
cert->akid, cert->akidSz);
if (der->akidSz == 0)
if (der->akidSz <= 0)
return AKID_E;
der->extensionsSz += der->akidSz;
@ -6987,7 +6995,7 @@ static int EncodeCert(Cert* cert, DerCert* der, RsaKey* rsaKey, ecc_key* eccKey,
if (cert->keyUsage != 0){
der->keyUsageSz = SetKeyUsage(der->keyUsage, sizeof(der->keyUsage),
cert->keyUsage);
if (der->keyUsageSz == 0)
if (der->keyUsageSz <= 0)
return KEYUSAGE_E;
der->extensionsSz += der->keyUsageSz;
@ -7001,7 +7009,7 @@ static int EncodeCert(Cert* cert, DerCert* der, RsaKey* rsaKey, ecc_key* eccKey,
sizeof(der->certPolicies),
cert->certPolicies,
cert->certPoliciesNb);
if (der->certPoliciesSz == 0)
if (der->certPoliciesSz <= 0)
return CERTPOLICIES_E;
der->extensionsSz += der->certPoliciesSz;
@ -7017,7 +7025,7 @@ static int EncodeCert(Cert* cert, DerCert* der, RsaKey* rsaKey, ecc_key* eccKey,
der->extensionsSz = SetExtensionsHeader(der->extensions,
sizeof(der->extensions),
der->extensionsSz);
if (der->extensionsSz == 0)
if (der->extensionsSz <= 0)
return EXTENSIONS_E;
/* put CA */
@ -7035,7 +7043,7 @@ static int EncodeCert(Cert* cert, DerCert* der, RsaKey* rsaKey, ecc_key* eccKey,
ret = SetExtensions(der->extensions, sizeof(der->extensions),
&der->extensionsSz,
der->altNames, der->altNamesSz);
if (ret == 0)
if (ret <= 0)
return EXTENSIONS_E;
}
#endif
@ -7046,7 +7054,7 @@ static int EncodeCert(Cert* cert, DerCert* der, RsaKey* rsaKey, ecc_key* eccKey,
ret = SetExtensions(der->extensions, sizeof(der->extensions),
&der->extensionsSz,
der->skid, der->skidSz);
if (ret == 0)
if (ret <= 0)
return EXTENSIONS_E;
}
@ -7055,7 +7063,7 @@ static int EncodeCert(Cert* cert, DerCert* der, RsaKey* rsaKey, ecc_key* eccKey,
ret = SetExtensions(der->extensions, sizeof(der->extensions),
&der->extensionsSz,
der->akid, der->akidSz);
if (ret == 0)
if (ret <= 0)
return EXTENSIONS_E;
}
@ -7064,7 +7072,7 @@ static int EncodeCert(Cert* cert, DerCert* der, RsaKey* rsaKey, ecc_key* eccKey,
ret = SetExtensions(der->extensions, sizeof(der->extensions),
&der->extensionsSz,
der->keyUsage, der->keyUsageSz);
if (ret == 0)
if (ret <= 0)
return EXTENSIONS_E;
}
@ -7073,7 +7081,7 @@ static int EncodeCert(Cert* cert, DerCert* der, RsaKey* rsaKey, ecc_key* eccKey,
ret = SetExtensions(der->extensions, sizeof(der->extensions),
&der->extensionsSz,
der->certPolicies, der->certPoliciesSz);
if (ret == 0)
if (ret <= 0)
return EXTENSIONS_E;
}
#endif /* WOLFSSL_CERT_EXT */
@ -7405,7 +7413,7 @@ static int EncodeCertReq(Cert* cert, DerCert* der,
/* subject name */
der->subjectSz = SetName(der->subject, sizeof(der->subject), &cert->subject);
if (der->subjectSz == 0)
if (der->subjectSz <= 0)
return SUBJECT_E;
/* public key */
@ -7434,7 +7442,7 @@ static int EncodeCertReq(Cert* cert, DerCert* der,
/* CA */
if (cert->isCA) {
der->caSz = SetCa(der->ca, sizeof(der->ca));
if (der->caSz == 0)
if (der->caSz <= 0)
return CA_TRUE_E;
der->extensionsSz += der->caSz;
@ -7451,7 +7459,7 @@ static int EncodeCertReq(Cert* cert, DerCert* der,
der->skidSz = SetSKID(der->skid, sizeof(der->skid),
cert->skid, cert->skidSz);
if (der->skidSz == 0)
if (der->skidSz <= 0)
return SKID_E;
der->extensionsSz += der->skidSz;
@ -7463,7 +7471,7 @@ static int EncodeCertReq(Cert* cert, DerCert* der,
if (cert->keyUsage != 0){
der->keyUsageSz = SetKeyUsage(der->keyUsage, sizeof(der->keyUsage),
cert->keyUsage);
if (der->keyUsageSz == 0)
if (der->keyUsageSz <= 0)
return KEYUSAGE_E;
der->extensionsSz += der->keyUsageSz;
@ -7478,7 +7486,7 @@ static int EncodeCertReq(Cert* cert, DerCert* der,
/* put the start of sequence (ID, Size) */
der->extensionsSz = SetSequence(der->extensionsSz, der->extensions);
if (der->extensionsSz == 0)
if (der->extensionsSz <= 0)
return EXTENSIONS_E;
/* put CA */
@ -7486,7 +7494,7 @@ static int EncodeCertReq(Cert* cert, DerCert* der,
ret = SetExtensions(der->extensions, sizeof(der->extensions),
&der->extensionsSz,
der->ca, der->caSz);
if (ret == 0)
if (ret <= 0)
return EXTENSIONS_E;
}
@ -7496,7 +7504,7 @@ static int EncodeCertReq(Cert* cert, DerCert* der,
ret = SetExtensions(der->extensions, sizeof(der->extensions),
&der->extensionsSz,
der->skid, der->skidSz);
if (ret == 0)
if (ret <= 0)
return EXTENSIONS_E;
}
@ -7505,7 +7513,7 @@ static int EncodeCertReq(Cert* cert, DerCert* der,
ret = SetExtensions(der->extensions, sizeof(der->extensions),
&der->extensionsSz,
der->akid, der->akidSz);
if (ret == 0)
if (ret <= 0)
return EXTENSIONS_E;
}
@ -7514,7 +7522,7 @@ static int EncodeCertReq(Cert* cert, DerCert* der,
ret = SetExtensions(der->extensions, sizeof(der->extensions),
&der->extensionsSz,
der->keyUsage, der->keyUsageSz);
if (ret == 0)
if (ret <= 0)
return EXTENSIONS_E;
}
@ -7523,7 +7531,7 @@ static int EncodeCertReq(Cert* cert, DerCert* der,
der->attribSz = SetReqAttrib(der->attrib,
cert->challengePw, der->extensionsSz);
if (der->attribSz == 0)
if (der->attribSz <= 0)
return REQ_ATTRIBUTE_E;
der->total = der->versionSz + der->subjectSz + der->publicKeySz +

3
wolfcrypt/src/error.c
View File

@ -380,6 +380,9 @@ const char* wc_GetErrorString(int error)
case WC_KEY_SIZE_E:
return "Key size error, either too small or large";
case ASN_COUNTRY_SIZE_E:
return "Country code size error, either too small or large";
default:
return "unknown error number";

1
wolfssl/wolfcrypt/asn_public.h
View File

@ -77,6 +77,7 @@ enum Ctc_Encoding {
};
enum Ctc_Misc {
CTC_COUNTRY_SIZE = 2,
CTC_NAME_SIZE = 64,
CTC_DATE_SIZE = 32,
CTC_MAX_ALT_SIZE = 16384, /* may be huge */

1
wolfssl/wolfcrypt/error-crypt.h
View File

@ -170,6 +170,7 @@ enum {
WC_PENDING_E = -233, /* wolfCrypt operation pending (would block) */
WC_KEY_SIZE_E = -234, /* Key size error, either too small or large */
ASN_COUNTRY_SIZE_E = -235, /* ASN Cert Gen, invalid country code size */
MIN_CODE_E = -300 /* errors -101 - -299 */