--- /dev/null
+/* LibTomCrypt, modular cryptographic library -- Tom St Denis
+ *
+ * LibTomCrypt is a library that provides various cryptographic
+ * algorithms in a highly modular and flexible manner.
+ *
+ * The library is free for all purposes without any express
+ * guarantee it works.
+ */
+
+#ifdef LTC_HMAC
+typedef struct Hmac_state {
+ hash_state md;
+ int hash;
+ hash_state hashstate;
+ unsigned char *key;
+} hmac_state;
+
+int hmac_init(hmac_state *hmac, int hash, const unsigned char *key, unsigned long keylen);
+int hmac_process(hmac_state *hmac, const unsigned char *in, unsigned long inlen);
+int hmac_done(hmac_state *hmac, unsigned char *out, unsigned long *outlen);
+int hmac_test(void);
+int hmac_memory(int hash,
+ const unsigned char *key, unsigned long keylen,
+ const unsigned char *in, unsigned long inlen,
+ unsigned char *out, unsigned long *outlen);
+int hmac_memory_multi(int hash,
+ const unsigned char *key, unsigned long keylen,
+ unsigned char *out, unsigned long *outlen,
+ const unsigned char *in, unsigned long inlen, ...);
+int hmac_file(int hash, const char *fname, const unsigned char *key,
+ unsigned long keylen,
+ unsigned char *dst, unsigned long *dstlen);
+#endif
+
+#ifdef LTC_OMAC
+
+typedef struct {
+ int cipher_idx,
+ buflen,
+ blklen;
+ unsigned char block[MAXBLOCKSIZE],
+ prev[MAXBLOCKSIZE],
+ Lu[2][MAXBLOCKSIZE];
+ symmetric_key key;
+} omac_state;
+
+int omac_init(omac_state *omac, int cipher, const unsigned char *key, unsigned long keylen);
+int omac_process(omac_state *omac, const unsigned char *in, unsigned long inlen);
+int omac_done(omac_state *omac, unsigned char *out, unsigned long *outlen);
+int omac_memory(int cipher,
+ const unsigned char *key, unsigned long keylen,
+ const unsigned char *in, unsigned long inlen,
+ unsigned char *out, unsigned long *outlen);
+int omac_memory_multi(int cipher,
+ const unsigned char *key, unsigned long keylen,
+ unsigned char *out, unsigned long *outlen,
+ const unsigned char *in, unsigned long inlen, ...);
+int omac_file(int cipher,
+ const unsigned char *key, unsigned long keylen,
+ const char *filename,
+ unsigned char *out, unsigned long *outlen);
+int omac_test(void);
+#endif /* LTC_OMAC */
+
+#ifdef LTC_PMAC
+
+typedef struct {
+ unsigned char Ls[32][MAXBLOCKSIZE], /* L shifted by i bits to the left */
+ Li[MAXBLOCKSIZE], /* value of Li [current value, we calc from previous recall] */
+ Lr[MAXBLOCKSIZE], /* L * x^-1 */
+ block[MAXBLOCKSIZE], /* currently accumulated block */
+ checksum[MAXBLOCKSIZE]; /* current checksum */
+
+ symmetric_key key; /* scheduled key for cipher */
+ unsigned long block_index; /* index # for current block */
+ int cipher_idx, /* cipher idx */
+ block_len, /* length of block */
+ buflen; /* number of bytes in the buffer */
+} pmac_state;
+
+int pmac_init(pmac_state *pmac, int cipher, const unsigned char *key, unsigned long keylen);
+int pmac_process(pmac_state *pmac, const unsigned char *in, unsigned long inlen);
+int pmac_done(pmac_state *pmac, unsigned char *out, unsigned long *outlen);
+
+int pmac_memory(int cipher,
+ const unsigned char *key, unsigned long keylen,
+ const unsigned char *msg, unsigned long msglen,
+ unsigned char *out, unsigned long *outlen);
+
+int pmac_memory_multi(int cipher,
+ const unsigned char *key, unsigned long keylen,
+ unsigned char *out, unsigned long *outlen,
+ const unsigned char *in, unsigned long inlen, ...);
+
+int pmac_file(int cipher,
+ const unsigned char *key, unsigned long keylen,
+ const char *filename,
+ unsigned char *out, unsigned long *outlen);
+
+int pmac_test(void);
+
+/* internal functions */
+int pmac_ntz(unsigned long x);
+void pmac_shift_xor(pmac_state *pmac);
+
+#endif /* PMAC */
+
+#ifdef LTC_POLY1305
+typedef struct {
+ ulong32 r[5];
+ ulong32 h[5];
+ ulong32 pad[4];
+ unsigned long leftover;
+ unsigned char buffer[16];
+ int final;
+} poly1305_state;
+
+int poly1305_init(poly1305_state *st, const unsigned char *key, unsigned long keylen);
+int poly1305_process(poly1305_state *st, const unsigned char *in, unsigned long inlen);
+int poly1305_done(poly1305_state *st, unsigned char *mac, unsigned long *maclen);
+int poly1305_memory(const unsigned char *key, unsigned long keylen, const unsigned char *in, unsigned long inlen, unsigned char *mac, unsigned long *maclen);
+int poly1305_memory_multi(const unsigned char *key, unsigned long keylen, unsigned char *mac, unsigned long *maclen, const unsigned char *in, unsigned long inlen, ...);
+int poly1305_file(const char *fname, const unsigned char *key, unsigned long keylen, unsigned char *mac, unsigned long *maclen);
+int poly1305_test(void);
+#endif /* LTC_POLY1305 */
+
+#ifdef LTC_BLAKE2SMAC
+typedef hash_state blake2smac_state;
+int blake2smac_init(blake2smac_state *st, unsigned long outlen, const unsigned char *key, unsigned long keylen);
+int blake2smac_process(blake2smac_state *st, const unsigned char *in, unsigned long inlen);
+int blake2smac_done(blake2smac_state *st, unsigned char *mac, unsigned long *maclen);
+int blake2smac_memory(const unsigned char *key, unsigned long keylen, const unsigned char *in, unsigned long inlen, unsigned char *mac, unsigned long *maclen);
+int blake2smac_memory_multi(const unsigned char *key, unsigned long keylen, unsigned char *mac, unsigned long *maclen, const unsigned char *in, unsigned long inlen, ...);
+int blake2smac_file(const char *fname, const unsigned char *key, unsigned long keylen, unsigned char *mac, unsigned long *maclen);
+int blake2smac_test(void);
+#endif /* LTC_BLAKE2SMAC */
+
+#ifdef LTC_BLAKE2BMAC
+typedef hash_state blake2bmac_state;
+int blake2bmac_init(blake2bmac_state *st, unsigned long outlen, const unsigned char *key, unsigned long keylen);
+int blake2bmac_process(blake2bmac_state *st, const unsigned char *in, unsigned long inlen);
+int blake2bmac_done(blake2bmac_state *st, unsigned char *mac, unsigned long *maclen);
+int blake2bmac_memory(const unsigned char *key, unsigned long keylen, const unsigned char *in, unsigned long inlen, unsigned char *mac, unsigned long *maclen);
+int blake2bmac_memory_multi(const unsigned char *key, unsigned long keylen, unsigned char *mac, unsigned long *maclen, const unsigned char *in, unsigned long inlen, ...);
+int blake2bmac_file(const char *fname, const unsigned char *key, unsigned long keylen, unsigned char *mac, unsigned long *maclen);
+int blake2bmac_test(void);
+#endif /* LTC_BLAKE2BMAC */
+
+#ifdef LTC_EAX_MODE
+
+#if !(defined(LTC_OMAC) && defined(LTC_CTR_MODE))
+ #error LTC_EAX_MODE requires LTC_OMAC and CTR
+#endif
+
+typedef struct {
+ unsigned char N[MAXBLOCKSIZE];
+ symmetric_CTR ctr;
+ omac_state headeromac, ctomac;
+} eax_state;
+
+int eax_init(eax_state *eax, int cipher, const unsigned char *key, unsigned long keylen,
+ const unsigned char *nonce, unsigned long noncelen,
+ const unsigned char *header, unsigned long headerlen);
+
+int eax_encrypt(eax_state *eax, const unsigned char *pt, unsigned char *ct, unsigned long length);
+int eax_decrypt(eax_state *eax, const unsigned char *ct, unsigned char *pt, unsigned long length);
+int eax_addheader(eax_state *eax, const unsigned char *header, unsigned long length);
+int eax_done(eax_state *eax, unsigned char *tag, unsigned long *taglen);
+
+int eax_encrypt_authenticate_memory(int cipher,
+ const unsigned char *key, unsigned long keylen,
+ const unsigned char *nonce, unsigned long noncelen,
+ const unsigned char *header, unsigned long headerlen,
+ const unsigned char *pt, unsigned long ptlen,
+ unsigned char *ct,
+ unsigned char *tag, unsigned long *taglen);
+
+int eax_decrypt_verify_memory(int cipher,
+ const unsigned char *key, unsigned long keylen,
+ const unsigned char *nonce, unsigned long noncelen,
+ const unsigned char *header, unsigned long headerlen,
+ const unsigned char *ct, unsigned long ctlen,
+ unsigned char *pt,
+ unsigned char *tag, unsigned long taglen,
+ int *stat);
+
+ int eax_test(void);
+#endif /* EAX MODE */
+
+#ifdef LTC_OCB_MODE
+typedef struct {
+ unsigned char L[MAXBLOCKSIZE], /* L value */
+ Ls[32][MAXBLOCKSIZE], /* L shifted by i bits to the left */
+ Li[MAXBLOCKSIZE], /* value of Li [current value, we calc from previous recall] */
+ Lr[MAXBLOCKSIZE], /* L * x^-1 */
+ R[MAXBLOCKSIZE], /* R value */
+ checksum[MAXBLOCKSIZE]; /* current checksum */
+
+ symmetric_key key; /* scheduled key for cipher */
+ unsigned long block_index; /* index # for current block */
+ int cipher, /* cipher idx */
+ block_len; /* length of block */
+} ocb_state;
+
+int ocb_init(ocb_state *ocb, int cipher,
+ const unsigned char *key, unsigned long keylen, const unsigned char *nonce);
+
+int ocb_encrypt(ocb_state *ocb, const unsigned char *pt, unsigned char *ct);
+int ocb_decrypt(ocb_state *ocb, const unsigned char *ct, unsigned char *pt);
+
+int ocb_done_encrypt(ocb_state *ocb,
+ const unsigned char *pt, unsigned long ptlen,
+ unsigned char *ct,
+ unsigned char *tag, unsigned long *taglen);
+
+int ocb_done_decrypt(ocb_state *ocb,
+ const unsigned char *ct, unsigned long ctlen,
+ unsigned char *pt,
+ const unsigned char *tag, unsigned long taglen, int *stat);
+
+int ocb_encrypt_authenticate_memory(int cipher,
+ const unsigned char *key, unsigned long keylen,
+ const unsigned char *nonce,
+ const unsigned char *pt, unsigned long ptlen,
+ unsigned char *ct,
+ unsigned char *tag, unsigned long *taglen);
+
+int ocb_decrypt_verify_memory(int cipher,
+ const unsigned char *key, unsigned long keylen,
+ const unsigned char *nonce,
+ const unsigned char *ct, unsigned long ctlen,
+ unsigned char *pt,
+ const unsigned char *tag, unsigned long taglen,
+ int *stat);
+
+int ocb_test(void);
+
+/* internal functions */
+void ocb_shift_xor(ocb_state *ocb, unsigned char *Z);
+int ocb_ntz(unsigned long x);
+int s_ocb_done(ocb_state *ocb, const unsigned char *pt, unsigned long ptlen,
+ unsigned char *ct, unsigned char *tag, unsigned long *taglen, int mode);
+
+#endif /* LTC_OCB_MODE */
+
+#ifdef LTC_OCB3_MODE
+typedef struct {
+ unsigned char Offset_0[MAXBLOCKSIZE], /* Offset_0 value */
+ Offset_current[MAXBLOCKSIZE], /* Offset_{current_block_index} value */
+ L_dollar[MAXBLOCKSIZE], /* L_$ value */
+ L_star[MAXBLOCKSIZE], /* L_* value */
+ L_[32][MAXBLOCKSIZE], /* L_{i} values */
+ tag_part[MAXBLOCKSIZE], /* intermediate result of tag calculation */
+ checksum[MAXBLOCKSIZE]; /* current checksum */
+
+ /* AAD related members */
+ unsigned char aSum_current[MAXBLOCKSIZE], /* AAD related helper variable */
+ aOffset_current[MAXBLOCKSIZE], /* AAD related helper variable */
+ adata_buffer[MAXBLOCKSIZE]; /* AAD buffer */
+ int adata_buffer_bytes; /* bytes in AAD buffer */
+ unsigned long ablock_index; /* index # for current adata (AAD) block */
+
+ symmetric_key key; /* scheduled key for cipher */
+ unsigned long block_index; /* index # for current data block */
+ int cipher, /* cipher idx */
+ tag_len, /* length of tag */
+ block_len; /* length of block */
+} ocb3_state;
+
+int ocb3_init(ocb3_state *ocb, int cipher,
+ const unsigned char *key, unsigned long keylen,
+ const unsigned char *nonce, unsigned long noncelen,
+ unsigned long taglen);
+
+int ocb3_encrypt(ocb3_state *ocb, const unsigned char *pt, unsigned long ptlen, unsigned char *ct);
+int ocb3_decrypt(ocb3_state *ocb, const unsigned char *ct, unsigned long ctlen, unsigned char *pt);
+int ocb3_encrypt_last(ocb3_state *ocb, const unsigned char *pt, unsigned long ptlen, unsigned char *ct);
+int ocb3_decrypt_last(ocb3_state *ocb, const unsigned char *ct, unsigned long ctlen, unsigned char *pt);
+int ocb3_add_aad(ocb3_state *ocb, const unsigned char *aad, unsigned long aadlen);
+int ocb3_done(ocb3_state *ocb, unsigned char *tag, unsigned long *taglen);
+
+int ocb3_encrypt_authenticate_memory(int cipher,
+ const unsigned char *key, unsigned long keylen,
+ const unsigned char *nonce, unsigned long noncelen,
+ const unsigned char *adata, unsigned long adatalen,
+ const unsigned char *pt, unsigned long ptlen,
+ unsigned char *ct,
+ unsigned char *tag, unsigned long *taglen);
+
+int ocb3_decrypt_verify_memory(int cipher,
+ const unsigned char *key, unsigned long keylen,
+ const unsigned char *nonce, unsigned long noncelen,
+ const unsigned char *adata, unsigned long adatalen,
+ const unsigned char *ct, unsigned long ctlen,
+ unsigned char *pt,
+ const unsigned char *tag, unsigned long taglen,
+ int *stat);
+
+int ocb3_test(void);
+
+#ifdef LTC_SOURCE
+/* internal helper functions */
+int ocb3_int_ntz(unsigned long x);
+void ocb3_int_xor_blocks(unsigned char *out, const unsigned char *block_a, const unsigned char *block_b, unsigned long block_len);
+#endif /* LTC_SOURCE */
+
+#endif /* LTC_OCB3_MODE */
+
+#ifdef LTC_CCM_MODE
+
+#define CCM_ENCRYPT LTC_ENCRYPT
+#define CCM_DECRYPT LTC_DECRYPT
+
+typedef struct {
+ symmetric_key K;
+ int cipher, /* which cipher */
+ taglen, /* length of the tag */
+ x; /* index in PAD */
+
+ unsigned long L, /* L value */
+ ptlen, /* length that will be enc / dec */
+ current_ptlen, /* current processed length */
+ aadlen, /* length of the aad */
+ current_aadlen, /* length of the currently provided add */
+ noncelen; /* length of the nonce */
+
+ unsigned char PAD[16],
+ ctr[16],
+ CTRPAD[16],
+ CTRlen;
+} ccm_state;
+
+int ccm_init(ccm_state *ccm, int cipher,
+ const unsigned char *key, int keylen, int ptlen, int taglen, int aad_len);
+
+int ccm_reset(ccm_state *ccm);
+
+int ccm_add_nonce(ccm_state *ccm,
+ const unsigned char *nonce, unsigned long noncelen);
+
+int ccm_add_aad(ccm_state *ccm,
+ const unsigned char *adata, unsigned long adatalen);
+
+int ccm_process(ccm_state *ccm,
+ unsigned char *pt, unsigned long ptlen,
+ unsigned char *ct,
+ int direction);
+
+int ccm_done(ccm_state *ccm,
+ unsigned char *tag, unsigned long *taglen);
+
+int ccm_memory(int cipher,
+ const unsigned char *key, unsigned long keylen,
+ symmetric_key *uskey,
+ const unsigned char *nonce, unsigned long noncelen,
+ const unsigned char *header, unsigned long headerlen,
+ unsigned char *pt, unsigned long ptlen,
+ unsigned char *ct,
+ unsigned char *tag, unsigned long *taglen,
+ int direction);
+
+int ccm_test(void);
+
+#endif /* LTC_CCM_MODE */
+
+#if defined(LRW_MODE) || defined(LTC_GCM_MODE)
+void gcm_gf_mult(const unsigned char *a, const unsigned char *b, unsigned char *c);
+#endif
+
+
+/* table shared between GCM and LRW */
+#if defined(LTC_GCM_TABLES) || defined(LTC_LRW_TABLES) || ((defined(LTC_GCM_MODE) || defined(LTC_GCM_MODE)) && defined(LTC_FAST))
+extern const unsigned char gcm_shift_table[];
+#endif
+
+#ifdef LTC_GCM_MODE
+
+#define GCM_ENCRYPT LTC_ENCRYPT
+#define GCM_DECRYPT LTC_DECRYPT
+
+#define LTC_GCM_MODE_IV 0
+#define LTC_GCM_MODE_AAD 1
+#define LTC_GCM_MODE_TEXT 2
+
+typedef struct {
+ symmetric_key K;
+ unsigned char H[16], /* multiplier */
+ X[16], /* accumulator */
+ Y[16], /* counter */
+ Y_0[16], /* initial counter */
+ buf[16]; /* buffer for stuff */
+
+ int cipher, /* which cipher */
+ ivmode, /* Which mode is the IV in? */
+ mode, /* mode the GCM code is in */
+ buflen; /* length of data in buf */
+
+ ulong64 totlen, /* 64-bit counter used for IV and AAD */
+ pttotlen; /* 64-bit counter for the PT */
+
+#ifdef LTC_GCM_TABLES
+ unsigned char PC[16][256][16] /* 16 tables of 8x128 */
+#ifdef LTC_GCM_TABLES_SSE2
+__attribute__ ((aligned (16)))
+#endif
+;
+#endif
+} gcm_state;
+
+void gcm_mult_h(gcm_state *gcm, unsigned char *I);
+
+int gcm_init(gcm_state *gcm, int cipher,
+ const unsigned char *key, int keylen);
+
+int gcm_reset(gcm_state *gcm);
+
+int gcm_add_iv(gcm_state *gcm,
+ const unsigned char *IV, unsigned long IVlen);
+
+int gcm_add_aad(gcm_state *gcm,
+ const unsigned char *adata, unsigned long adatalen);
+
+int gcm_process(gcm_state *gcm,
+ unsigned char *pt, unsigned long ptlen,
+ unsigned char *ct,
+ int direction);
+
+int gcm_done(gcm_state *gcm,
+ unsigned char *tag, unsigned long *taglen);
+
+int gcm_memory( int cipher,
+ const unsigned char *key, unsigned long keylen,
+ const unsigned char *IV, unsigned long IVlen,
+ const unsigned char *adata, unsigned long adatalen,
+ unsigned char *pt, unsigned long ptlen,
+ unsigned char *ct,
+ unsigned char *tag, unsigned long *taglen,
+ int direction);
+int gcm_test(void);
+
+#endif /* LTC_GCM_MODE */
+
+#ifdef LTC_PELICAN
+
+typedef struct pelican_state
+{
+ symmetric_key K;
+ unsigned char state[16];
+ int buflen;
+} pelican_state;
+
+int pelican_init(pelican_state *pelmac, const unsigned char *key, unsigned long keylen);
+int pelican_process(pelican_state *pelmac, const unsigned char *in, unsigned long inlen);
+int pelican_done(pelican_state *pelmac, unsigned char *out);
+int pelican_test(void);
+
+int pelican_memory(const unsigned char *key, unsigned long keylen,
+ const unsigned char *in, unsigned long inlen,
+ unsigned char *out);
+
+#endif
+
+#ifdef LTC_XCBC
+
+/* add this to "keylen" to xcbc_init to use a pure three-key XCBC MAC */
+#define LTC_XCBC_PURE 0x8000UL
+
+typedef struct {
+ unsigned char K[3][MAXBLOCKSIZE],
+ IV[MAXBLOCKSIZE];
+
+ symmetric_key key;
+
+ int cipher,
+ buflen,
+ blocksize;
+} xcbc_state;
+
+int xcbc_init(xcbc_state *xcbc, int cipher, const unsigned char *key, unsigned long keylen);
+int xcbc_process(xcbc_state *xcbc, const unsigned char *in, unsigned long inlen);
+int xcbc_done(xcbc_state *xcbc, unsigned char *out, unsigned long *outlen);
+int xcbc_memory(int cipher,
+ const unsigned char *key, unsigned long keylen,
+ const unsigned char *in, unsigned long inlen,
+ unsigned char *out, unsigned long *outlen);
+int xcbc_memory_multi(int cipher,
+ const unsigned char *key, unsigned long keylen,
+ unsigned char *out, unsigned long *outlen,
+ const unsigned char *in, unsigned long inlen, ...);
+int xcbc_file(int cipher,
+ const unsigned char *key, unsigned long keylen,
+ const char *filename,
+ unsigned char *out, unsigned long *outlen);
+int xcbc_test(void);
+
+#endif
+
+#ifdef LTC_F9_MODE
+
+typedef struct {
+ unsigned char akey[MAXBLOCKSIZE],
+ ACC[MAXBLOCKSIZE],
+ IV[MAXBLOCKSIZE];
+
+ symmetric_key key;
+
+ int cipher,
+ buflen,
+ keylen,
+ blocksize;
+} f9_state;
+
+int f9_init(f9_state *f9, int cipher, const unsigned char *key, unsigned long keylen);
+int f9_process(f9_state *f9, const unsigned char *in, unsigned long inlen);
+int f9_done(f9_state *f9, unsigned char *out, unsigned long *outlen);
+int f9_memory(int cipher,
+ const unsigned char *key, unsigned long keylen,
+ const unsigned char *in, unsigned long inlen,
+ unsigned char *out, unsigned long *outlen);
+int f9_memory_multi(int cipher,
+ const unsigned char *key, unsigned long keylen,
+ unsigned char *out, unsigned long *outlen,
+ const unsigned char *in, unsigned long inlen, ...);
+int f9_file(int cipher,
+ const unsigned char *key, unsigned long keylen,
+ const char *filename,
+ unsigned char *out, unsigned long *outlen);
+int f9_test(void);
+
+#endif
+
+#ifdef LTC_CHACHA20POLY1305_MODE
+
+typedef struct {
+ poly1305_state poly;
+ chacha_state chacha;
+ ulong64 aadlen;
+ ulong64 ctlen;
+ int aadflg;
+} chacha20poly1305_state;
+
+#define CHACHA20POLY1305_ENCRYPT LTC_ENCRYPT
+#define CHACHA20POLY1305_DECRYPT LTC_DECRYPT
+
+int chacha20poly1305_init(chacha20poly1305_state *st, const unsigned char *key, unsigned long keylen);
+int chacha20poly1305_setiv(chacha20poly1305_state *st, const unsigned char *iv, unsigned long ivlen);
+int chacha20poly1305_setiv_rfc7905(chacha20poly1305_state *st, const unsigned char *iv, unsigned long ivlen, ulong64 sequence_number);
+int chacha20poly1305_add_aad(chacha20poly1305_state *st, const unsigned char *in, unsigned long inlen);
+int chacha20poly1305_encrypt(chacha20poly1305_state *st, const unsigned char *in, unsigned long inlen, unsigned char *out);
+int chacha20poly1305_decrypt(chacha20poly1305_state *st, const unsigned char *in, unsigned long inlen, unsigned char *out);
+int chacha20poly1305_done(chacha20poly1305_state *st, unsigned char *tag, unsigned long *taglen);
+int chacha20poly1305_memory(const unsigned char *key, unsigned long keylen,
+ const unsigned char *iv, unsigned long ivlen,
+ const unsigned char *aad, unsigned long aadlen,
+ const unsigned char *in, unsigned long inlen,
+ unsigned char *out,
+ unsigned char *tag, unsigned long *taglen,
+ int direction);
+int chacha20poly1305_test(void);
+
+#endif /* LTC_CHACHA20POLY1305_MODE */
+
+/* ref: $Format:%D$ */
+/* git commit: $Format:%H$ */
+/* commit time: $Format:%ai$ */
projects / zpackage / blobdiff