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/*
* CMS Decoding
* (C) 1999-2007 Jack Lloyd
*
* Distributed under the terms of the Botan license
*/
#ifndef BOTAN_CMS_DECODER_H__
#define BOTAN_CMS_DECODER_H__
#include <botan/x509cert.h>
#include <botan/x509stor.h>
#include <botan/pkcs8.h>
#include <botan/ber_dec.h>
#include <botan/ui.h>
namespace Botan {
/*
* CMS Decoding Operation
*/
class BOTAN_DLL CMS_Decoder
{
public:
enum Status { GOOD, BAD, NO_KEY, FAILURE };
enum Content_Type { DATA, UNKNOWN, COMPRESSED, ENVELOPED, SIGNED,
AUTHENTICATED, DIGESTED };
Status layer_status() const;
Content_Type layer_type() const;
std::string layer_info() const;
std::string layer_algo() const;
std::string get_data() const;
std::vector<X509_Certificate> get_certs() const;
std::vector<X509_CRL> get_crls() const;
void next_layer() { decode_layer(); }
void add_key(PKCS8_PrivateKey*);
CMS_Decoder(DataSource&, const X509_Store&, User_Interface&,
PKCS8_PrivateKey* = 0);
private:
std::string get_passphrase(const std::string&);
void read_econtent(BER_Decoder&);
void initial_read(DataSource&);
void decode_layer();
void decompress(BER_Decoder&);
User_Interface& ui;
X509_Store store;
std::vector<std::string> passphrases;
std::vector<PKCS8_PrivateKey*> keys;
OID type, next_type;
SecureVector<byte> data;
Status status;
std::string info;
};
}
#endif
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