176 lines
6.0 KiB
C
176 lines
6.0 KiB
C
/* LibTomCrypt, modular cryptographic library -- Tom St Denis */
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/* SPDX-License-Identifier: Unlicense */
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/* ---- LTC_BASE64 Routines ---- */
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#ifdef LTC_BASE64
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int base64_encode(const unsigned char *in, unsigned long inlen,
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char *out, unsigned long *outlen);
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int base64_decode(const char *in, unsigned long inlen,
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unsigned char *out, unsigned long *outlen);
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int base64_strict_decode(const char *in, unsigned long inlen,
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unsigned char *out, unsigned long *outlen);
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int base64_sane_decode(const char *in, unsigned long inlen,
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unsigned char *out, unsigned long *outlen);
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#endif
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#ifdef LTC_BASE64_URL
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int base64url_encode(const unsigned char *in, unsigned long inlen,
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char *out, unsigned long *outlen);
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int base64url_strict_encode(const unsigned char *in, unsigned long inlen,
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char *out, unsigned long *outlen);
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int base64url_decode(const char *in, unsigned long inlen,
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unsigned char *out, unsigned long *outlen);
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int base64url_strict_decode(const char *in, unsigned long inlen,
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unsigned char *out, unsigned long *outlen);
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int base64url_sane_decode(const char *in, unsigned long inlen,
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unsigned char *out, unsigned long *outlen);
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#endif
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/* ---- BASE32 Routines ---- */
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#ifdef LTC_BASE32
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typedef enum {
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BASE32_RFC4648 = 0,
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BASE32_BASE32HEX = 1,
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BASE32_ZBASE32 = 2,
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BASE32_CROCKFORD = 3
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} base32_alphabet;
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int base32_encode(const unsigned char *in, unsigned long inlen,
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char *out, unsigned long *outlen,
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base32_alphabet id);
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int base32_decode(const char *in, unsigned long inlen,
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unsigned char *out, unsigned long *outlen,
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base32_alphabet id);
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#endif
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/* ---- BASE16 Routines ---- */
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#ifdef LTC_BASE16
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int base16_encode(const unsigned char *in, unsigned long inlen,
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char *out, unsigned long *outlen,
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unsigned int options);
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int base16_decode(const char *in, unsigned long inlen,
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unsigned char *out, unsigned long *outlen);
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#endif
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#ifdef LTC_BCRYPT
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int bcrypt_pbkdf_openbsd(const void *secret, unsigned long secret_len,
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const unsigned char *salt, unsigned long salt_len,
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unsigned int rounds, int hash_idx,
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unsigned char *out, unsigned long *outlen);
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#endif
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/* ===> LTC_HKDF -- RFC5869 HMAC-based Key Derivation Function <=== */
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#ifdef LTC_HKDF
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int hkdf_test(void);
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int hkdf_extract(int hash_idx,
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const unsigned char *salt, unsigned long saltlen,
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const unsigned char *in, unsigned long inlen,
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unsigned char *out, unsigned long *outlen);
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int hkdf_expand(int hash_idx,
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const unsigned char *info, unsigned long infolen,
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const unsigned char *in, unsigned long inlen,
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unsigned char *out, unsigned long outlen);
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int hkdf(int hash_idx,
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const unsigned char *salt, unsigned long saltlen,
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const unsigned char *info, unsigned long infolen,
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const unsigned char *in, unsigned long inlen,
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unsigned char *out, unsigned long outlen);
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#endif /* LTC_HKDF */
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/* ---- MEM routines ---- */
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int mem_neq(const void *a, const void *b, size_t len);
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void zeromem(volatile void *out, size_t outlen);
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void burn_stack(unsigned long len);
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const char *error_to_string(int err);
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extern const char *crypt_build_settings;
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/* ---- HMM ---- */
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int crypt_fsa(void *mp, ...);
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/* ---- Dynamic language support ---- */
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int crypt_get_constant(const char* namein, int *valueout);
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int crypt_list_all_constants(char *names_list, unsigned int *names_list_size);
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int crypt_get_size(const char* namein, unsigned int *sizeout);
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int crypt_list_all_sizes(char *names_list, unsigned int *names_list_size);
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#ifdef LTM_DESC
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LTC_DEPRECATED(crypt_mp_init) void init_LTM(void);
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#endif
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#ifdef TFM_DESC
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LTC_DEPRECATED(crypt_mp_init) void init_TFM(void);
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#endif
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#ifdef GMP_DESC
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LTC_DEPRECATED(crypt_mp_init) void init_GMP(void);
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#endif
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int crypt_mp_init(const char* mpi);
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#ifdef LTC_ADLER32
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typedef struct adler32_state_s
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{
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unsigned short s[2];
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} adler32_state;
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void adler32_init(adler32_state *ctx);
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void adler32_update(adler32_state *ctx, const unsigned char *input, unsigned long length);
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void adler32_finish(const adler32_state *ctx, void *hash, unsigned long size);
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int adler32_test(void);
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#endif
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#ifdef LTC_CRC32
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typedef struct crc32_state_s
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{
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ulong32 crc;
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} crc32_state;
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void crc32_init(crc32_state *ctx);
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void crc32_update(crc32_state *ctx, const unsigned char *input, unsigned long length);
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void crc32_finish(const crc32_state *ctx, void *hash, unsigned long size);
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int crc32_test(void);
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#endif
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#ifdef LTC_PADDING
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enum padding_type {
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LTC_PAD_PKCS7 = 0x0000U,
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#ifdef LTC_RNG_GET_BYTES
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LTC_PAD_ISO_10126 = 0x1000U,
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#endif
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LTC_PAD_ANSI_X923 = 0x2000U,
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LTC_PAD_ONE_AND_ZERO = 0x8000U,
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LTC_PAD_ZERO = 0x9000U,
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LTC_PAD_ZERO_ALWAYS = 0xA000U,
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};
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int padding_pad(unsigned char *data, unsigned long length, unsigned long* padded_length, unsigned long mode);
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int padding_depad(const unsigned char *data, unsigned long *length, unsigned long mode);
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#endif /* LTC_PADDING */
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#ifdef LTC_SSH
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typedef enum ssh_data_type_ {
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LTC_SSHDATA_EOL,
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LTC_SSHDATA_BYTE,
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LTC_SSHDATA_BOOLEAN,
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LTC_SSHDATA_UINT32,
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LTC_SSHDATA_UINT64,
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LTC_SSHDATA_STRING,
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LTC_SSHDATA_MPINT,
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LTC_SSHDATA_NAMELIST,
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} ssh_data_type;
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/* VA list handy helpers with tuples of <type, data> */
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int ssh_encode_sequence_multi(unsigned char *out, unsigned long *outlen, ...);
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int ssh_decode_sequence_multi(const unsigned char *in, unsigned long *inlen, ...);
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#endif /* LTC_SSH */
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int compare_testvector(const void* is, const unsigned long is_len, const void* should, const unsigned long should_len, const char* what, int which);
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