diff options
| -rw-r--r-- | src/lib/asn1/asn1_oid.cpp | 2 | ||||
| -rw-r--r-- | src/lib/asn1/der_enc.cpp | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/src/lib/asn1/asn1_oid.cpp b/src/lib/asn1/asn1_oid.cpp index 67af91afc..5b0a557d2 100644 --- a/src/lib/asn1/asn1_oid.cpp +++ b/src/lib/asn1/asn1_oid.cpp @@ -141,6 +141,8 @@ void OID::encode_into(DER_Encoder& der) const size_t blocks = high_bit(m_id[i]) + 6; blocks = (blocks - (blocks % 7)) / 7; + BOTAN_ASSERT(blocks > 0, "Math works"); + for(size_t j = 0; j != blocks - 1; ++j) encoding.push_back(0x80 | ((m_id[i] >> 7*(blocks-j-1)) & 0x7F)); encoding.push_back(m_id[i] & 0x7F); diff --git a/src/lib/asn1/der_enc.cpp b/src/lib/asn1/der_enc.cpp index 871171153..c5c2b4803 100644 --- a/src/lib/asn1/der_enc.cpp +++ b/src/lib/asn1/der_enc.cpp @@ -34,6 +34,8 @@ secure_vector<byte> encode_tag(ASN1_Tag type_tag, ASN1_Tag class_tag) size_t blocks = high_bit(type_tag) + 6; blocks = (blocks - (blocks % 7)) / 7; + BOTAN_ASSERT(blocks > 0, "Math works"); + encoded_tag.push_back(class_tag | 0x1F); for(size_t i = 0; i != blocks - 1; ++i) encoded_tag.push_back(0x80 | ((type_tag >> 7*(blocks-i-1)) & 0x7F)); |