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Diffstat (limited to 'botan/src/asn1/asn1_int.h')
-rw-r--r-- | botan/src/asn1/asn1_int.h | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/botan/src/asn1/asn1_int.h b/botan/src/asn1/asn1_int.h new file mode 100644 index 0000000..619f45b --- /dev/null +++ b/botan/src/asn1/asn1_int.h @@ -0,0 +1,108 @@ +/* +* ASN.1 Internals +* (C) 1999-2007 Jack Lloyd +* +* Distributed under the terms of the Botan license +*/ + +#ifndef BOTAN_ASN1_H__ +#define BOTAN_ASN1_H__ + +#include <botan/secmem.h> +#include <botan/exceptn.h> + +namespace Botan { + +/* +* ASN.1 Type and Class Tags +*/ +enum ASN1_Tag { + UNIVERSAL = 0x00, + APPLICATION = 0x40, + CONTEXT_SPECIFIC = 0x80, + PRIVATE = 0xC0, + + CONSTRUCTED = 0x20, + + EOC = 0x00, + BOOLEAN = 0x01, + INTEGER = 0x02, + BIT_STRING = 0x03, + OCTET_STRING = 0x04, + NULL_TAG = 0x05, + OBJECT_ID = 0x06, + ENUMERATED = 0x0A, + SEQUENCE = 0x10, + SET = 0x11, + + UTF8_STRING = 0x0C, + NUMERIC_STRING = 0x12, + PRINTABLE_STRING = 0x13, + T61_STRING = 0x14, + IA5_STRING = 0x16, + VISIBLE_STRING = 0x1A, + BMP_STRING = 0x1E, + + UTC_TIME = 0x17, + GENERALIZED_TIME = 0x18, + + NO_OBJECT = 0xFF00, + DIRECTORY_STRING = 0xFF01 +}; + +/* +* Basic ASN.1 Object Interface +*/ +class BOTAN_DLL ASN1_Object + { + public: + virtual void encode_into(class DER_Encoder&) const = 0; + virtual void decode_from(class BER_Decoder&) = 0; + virtual ~ASN1_Object() {} + }; + +/* +* BER Encoded Object +*/ +class BOTAN_DLL BER_Object + { + public: + void assert_is_a(ASN1_Tag, ASN1_Tag); + + ASN1_Tag type_tag, class_tag; + SecureVector<byte> value; + }; + +/* +* ASN.1 Utility Functions +*/ +class DataSource; + +namespace ASN1 { + +SecureVector<byte> put_in_sequence(const MemoryRegion<byte>&); +std::string to_string(const BER_Object&); +bool maybe_BER(DataSource&); + +} + +/* +* General BER Decoding Error Exception +*/ +struct BER_Decoding_Error : public Decoding_Error + { + BER_Decoding_Error(const std::string&); + }; + +/* +* Exception For Incorrect BER Taggings +*/ +struct BER_Bad_Tag : public BER_Decoding_Error + { + BER_Bad_Tag(const std::string&, ASN1_Tag); + BER_Bad_Tag(const std::string&, ASN1_Tag, ASN1_Tag); + }; + +} + +#endif |