ulong setup;
int rounds;
int keybytes;
- uint ctrsz;
uchar key[AESmaxkey]; /* unexpanded key */
ulong ekey[4*(AESmaxrounds + 1)]; /* encryption key */
ulong dkey[4*(AESmaxrounds + 1)]; /* decryption key */
void setupAESstate(AESstate *s, uchar key[], int keybytes, uchar *ivec);
void aesCBCencrypt(uchar *p, int len, AESstate *s);
void aesCBCdecrypt(uchar *p, int len, AESstate *s);
-void aesCTRdecrypt(uchar *p, int len, AESstate *s);
-void aesCTRencrypt(uchar *p, int len, AESstate *s);
void setupAESXCBCstate(AESstate *s);
uchar* aesXCBCmac(uchar *p, int len, AESstate *s);
void bfECBencrypt(uchar*, int, BFstate*);
void bfECBdecrypt(uchar*, int, BFstate*);
+/*
+ * Chacha definitions
+ */
+
+enum
+{
+ ChachaBsize= 64,
+ ChachaKeylen= 256/8,
+ ChachaIVlen= 96/8,
+};
+
+typedef struct Chachastate Chachastate;
+struct Chachastate
+{
+ union{
+ u32int input[16];
+ struct {
+ u32int constant[4];
+ u32int key[8];
+ u32int counter;
+ u32int iv[3];
+ };
+ };
+ int rounds;
+ int ivwords;
+};
+
+void setupChachastate(Chachastate*, uchar*, ulong, uchar*, ulong, int);
+void chacha_setiv(Chachastate *, uchar*);
+void chacha_setblock(Chachastate*, u64int);
+void chacha_encrypt(uchar*, ulong, Chachastate*);
+void chacha_encrypt2(uchar*, uchar*, ulong, Chachastate*);
+
+void ccpoly_encrypt(uchar *dat, ulong ndat, uchar *aad, ulong naad, uchar tag[16], Chachastate *cs);
+int ccpoly_decrypt(uchar *dat, ulong ndat, uchar *aad, ulong naad, uchar tag[16], Chachastate *cs);
+
/*
* DES definitions
*/
SHA2_512dlen= 64, /* SHA-512 digest length */
MD4dlen= 16, /* MD4 digest length */
MD5dlen= 16, /* MD5 digest length */
- AESdlen= 16, /* TODO: see rfc */
+ Poly1305dlen= 16, /* Poly1305 digest length */
Hmacblksz = 64, /* in bytes; from rfc2104 */
};
typedef struct DigestState SHA2_512state;
typedef struct DigestState MD5state;
typedef struct DigestState MD4state;
-typedef struct DigestState AEShstate;
DigestState* md4(uchar*, ulong, uchar*, DigestState*);
DigestState* md5(uchar*, ulong, uchar*, DigestState*);
DigestState* sha2_256(uchar*, ulong, uchar*, DigestState*);
DigestState* sha2_384(uchar*, ulong, uchar*, DigestState*);
DigestState* sha2_512(uchar*, ulong, uchar*, DigestState*);
-DigestState* aes(uchar*, ulong, uchar*, DigestState*);
DigestState* hmac_x(uchar *p, ulong len, uchar *key, ulong klen,
uchar *digest, DigestState *s,
DigestState*(*x)(uchar*, ulong, uchar*, DigestState*),
DigestState* hmac_sha2_256(uchar*, ulong, uchar*, ulong, uchar*, DigestState*);
DigestState* hmac_sha2_384(uchar*, ulong, uchar*, ulong, uchar*, DigestState*);
DigestState* hmac_sha2_512(uchar*, ulong, uchar*, ulong, uchar*, DigestState*);
-DigestState* hmac_aes(uchar*, ulong, uchar*, ulong, uchar*, DigestState*);
char* md5pickle(MD5state*);
MD5state* md5unpickle(char*);
char* sha1pickle(SHA1state*);
SHA1state* sha1unpickle(char*);
+DigestState* poly1305(uchar*, ulong, uchar*, ulong, uchar*, DigestState*);
+
/*
* random number generation
*/
PEMChain* decodepemchain(char *s, char *type);
uchar* X509gen(RSApriv *priv, char *subj, ulong valid[2], int *certlen);
uchar* X509req(RSApriv *priv, char *subj, int *certlen);
+char* X509verifydigest(uchar *sig, int siglen, uchar *edigest, int edigestlen, RSApub *pk);
+char* X509verifydata(uchar *sig, int siglen, uchar *data, int datalen, RSApub *pk);
char* X509verify(uchar *cert, int ncert, RSApub *pk);
void X509dump(uchar *cert, int ncert);
char dir[40]; /* connection directory */
uchar *cert; /* certificate (local on input, remote on output) */
uchar *sessionID;
+ uchar *psk;
int certlen;
int sessionIDlen;
+ int psklen;
int (*trace)(char*fmt, ...);
PEMChain*chain; /* optional extra certificate evidence for servers to present */
char *sessionType;
uchar *sessionKey;
int sessionKeylen;
char *sessionConst;
+ char *serverName;
+ char *pskID;
} TLSconn;
/* tlshand.c */
/* readcert.c */
uchar *readcert(char *filename, int *pcertlen);
PEMChain*readcertchain(char *filename);
+
+/* aes_xts.c */
+int aes_xts_encrypt(ulong tweak[], ulong ecb[], vlong sectorNumber, uchar *input, uchar *output, ulong len) ;
+int aes_xts_decrypt(ulong tweak[], ulong ecb[], vlong sectorNumber, uchar *input, uchar *output, ulong len);
+
+typedef struct ECpoint{
+ int inf;
+ mpint *x;
+ mpint *y;
+} ECpoint;
+
+typedef ECpoint ECpub;
+typedef struct ECpriv{
+ ECpoint;
+ mpint *d;
+} ECpriv;
+
+typedef struct ECdomain{
+ mpint *p;
+ mpint *a;
+ mpint *b;
+ ECpoint *G;
+ mpint *n;
+ mpint *h;
+} ECdomain;
+
+void ecassign(ECdomain *, ECpoint *old, ECpoint *new);
+void ecadd(ECdomain *, ECpoint *a, ECpoint *b, ECpoint *s);
+void ecmul(ECdomain *, ECpoint *a, mpint *k, ECpoint *s);
+ECpoint* strtoec(ECdomain *, char *, char **, ECpoint *);
+ECpriv* ecgen(ECdomain *, ECpriv*);
+int ecverify(ECdomain *, ECpoint *);
+int ecpubverify(ECdomain *, ECpub *);
+void ecdsasign(ECdomain *, ECpriv *, uchar *, int, mpint *, mpint *);
+int ecdsaverify(ECdomain *, ECpub *, uchar *, int, mpint *, mpint *);
+void base58enc(uchar *, char *, int);
+int base58dec(char *, uchar *, int);
+
+DigestState* ripemd160(uchar *, ulong, uchar *, DigestState *);
+
+/*
+ * Diffie-Hellman key exchange
+ */
+
+typedef struct DHstate DHstate;
+struct DHstate
+{
+ mpint *g; /* base g */
+ mpint *p; /* large prime */
+ mpint *q; /* subgroup prime */
+ mpint *x; /* random secret */
+ mpint *y; /* public key y = g**x % p */
+};
+
+/* generate new public key: y = g**x % p */
+mpint* dh_new(DHstate *dh, mpint *p, mpint *q, mpint *g);
+
+/* calculate shared key: k = y**x % p */
+mpint* dh_finish(DHstate *dh, mpint *y);
+
+/* Curve25519 elliptic curve, public key function */
+void curve25519(uchar mypublic[32], uchar secret[32], uchar basepoint[32]);
+
+/* Curve25519 diffie hellman */
+void curve25519_dh_new(uchar x[32], uchar y[32]);
+void curve25519_dh_finish(uchar x[32], uchar y[32], uchar z[32]);
+
+/* password-based key derivation function 2 (rfc2898) */
+void pbkdf2_x(uchar *p, ulong plen, uchar *s, ulong slen, ulong rounds, uchar *d, ulong dlen,
+ DigestState* (*x)(uchar*, ulong, uchar*, ulong, uchar*, DigestState*), int xlen);
+
+/* hmac-based key derivation function (rfc5869) */
+void hkdf_x(uchar *salt, ulong nsalt, uchar *info, ulong ninfo, uchar *key, ulong nkey, uchar *d, ulong dlen,
+ DigestState* (*x)(uchar*, ulong, uchar*, ulong, uchar*, DigestState*), int xlen);
+
+/* timing safe memcmp() */
+int tsmemcmp(void*, void*, ulong);
projects / plan9front.git / blobdiff