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This commit is contained in:
Ramil Kalimullin 2010-01-13 14:11:42 +04:00
commit 14afe5c4ce
2 changed files with 69 additions and 55 deletions
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1
extra/yassl/taocrypt/include/asn.hpp
View file

@ -305,6 +305,7 @@ private:
bool ValidateSignature(SignerList*);
bool ConfirmSignature(Source&);
void GetKey();
char* AddTag(char*, const char*, const char*, word32, word32);
void GetName(NameType);
void GetValidity();
void GetDate(DateType);

123
extra/yassl/taocrypt/src/asn.cpp
View file

@ -652,6 +652,23 @@ word32 CertDecoder::GetDigest()
}
char *CertDecoder::AddTag(char *ptr, const char *buf_end,
const char *tag_name, word32 tag_name_length,
word32 tag_value_length)
{
if (ptr + tag_name_length + tag_value_length > buf_end)
return 0;
memcpy(ptr, tag_name, tag_name_length);
ptr+= tag_name_length;
memcpy(ptr, source_.get_current(), tag_value_length);
ptr+= tag_value_length;
return ptr;
}
// process NAME, either issuer or subject
void CertDecoder::GetName(NameType nt)
{
@ -659,11 +676,21 @@ void CertDecoder::GetName(NameType nt)
SHA sha;
word32 length = GetSequence(); // length of all distinguished names
assert (length < ASN_NAME_MAX);
if (length >= ASN_NAME_MAX)
goto err;
length += source_.get_index();
char* ptr = (nt == ISSUER) ? issuer_ : subject_;
word32 idx = 0;
char *ptr, *buf_end;
if (nt == ISSUER) {
ptr= issuer_;
buf_end= ptr + sizeof(issuer_) - 1; // 1 byte for trailing 0
}
else {
ptr= subject_;
buf_end= ptr + sizeof(subject_) - 1; // 1 byte for trailing 0
}
while (source_.get_index() < length) {
GetSet();
@ -685,47 +712,36 @@ void CertDecoder::GetName(NameType nt)
byte id = source_.next();
b = source_.next(); // strType
word32 strLen = GetLength(source_);
bool copy = false;
if (id == COMMON_NAME) {
memcpy(&ptr[idx], "/CN=", 4);
idx += 4;
copy = true;
}
else if (id == SUR_NAME) {
memcpy(&ptr[idx], "/SN=", 4);
idx += 4;
copy = true;
}
else if (id == COUNTRY_NAME) {
memcpy(&ptr[idx], "/C=", 3);
idx += 3;
copy = true;
}
else if (id == LOCALITY_NAME) {
memcpy(&ptr[idx], "/L=", 3);
idx += 3;
copy = true;
}
else if (id == STATE_NAME) {
memcpy(&ptr[idx], "/ST=", 4);
idx += 4;
copy = true;
}
else if (id == ORG_NAME) {
memcpy(&ptr[idx], "/O=", 3);
idx += 3;
copy = true;
}
else if (id == ORGUNIT_NAME) {
memcpy(&ptr[idx], "/OU=", 4);
idx += 4;
copy = true;
}
if (copy) {
memcpy(&ptr[idx], source_.get_current(), strLen);
idx += strLen;
switch (id) {
case COMMON_NAME:
if (!(ptr= AddTag(ptr, buf_end, "/CN=", 4, strLen)))
goto err;
break;
case SUR_NAME:
if (!(ptr= AddTag(ptr, buf_end, "/SN=", 4, strLen)))
goto err;
break;
case COUNTRY_NAME:
if (!(ptr= AddTag(ptr, buf_end, "/C=", 3, strLen)))
goto err;
break;
case LOCALITY_NAME:
if (!(ptr= AddTag(ptr, buf_end, "/L=", 3, strLen)))
goto err;
break;
case STATE_NAME:
if (!(ptr= AddTag(ptr, buf_end, "/ST=", 4, strLen)))
goto err;
break;
case ORG_NAME:
if (!(ptr= AddTag(ptr, buf_end, "/O=", 3, strLen)))
goto err;
break;
case ORGUNIT_NAME:
if (!(ptr= AddTag(ptr, buf_end, "/OU=", 4, strLen)))
goto err;
break;
}
sha.Update(source_.get_current(), strLen);
@ -739,23 +755,20 @@ void CertDecoder::GetName(NameType nt)
source_.advance(oidSz + 1);
word32 length = GetLength(source_);
if (email) {
memcpy(&ptr[idx], "/emailAddress=", 14);
idx += 14;
memcpy(&ptr[idx], source_.get_current(), length);
idx += length;
}
if (email && !(ptr= AddTag(ptr, buf_end, "/emailAddress=", 14, length)))
goto err;
source_.advance(length);
}
}
ptr[idx++] = 0;
*ptr= 0;
if (nt == ISSUER)
sha.Final(issuerHash_);
else
sha.Final(subjectHash_);
sha.Final(nt == ISSUER ? issuerHash_ : subjectHash_);
return;
err:
source_.SetError(CONTENT_E);
}