20250aa5dc
Include 128-bit key support based on the Salsa20 eSTREAM submission. Allow variable-length nonces. Use random bytes for initial nonce value. Increase PBE hash rounds to 50000.
32 lines
893 B
C
32 lines
893 B
C
#ifndef crypto_xsalsa20_H
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#define crypto_xsalsa20_H
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#include <inttypes.h>
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#include <utils.h>
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#define XSALSA20_CRYPTO_KEYBYTES 32
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#define XSALSA20_CRYPTO_NONCEBYTES 24
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct {
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unsigned char nonce[XSALSA20_CRYPTO_NONCEBYTES];
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uchar_t key[XSALSA20_CRYPTO_KEYBYTES];
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int keylen;
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uchar_t pkey[XSALSA20_CRYPTO_KEYBYTES];
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} salsa20_ctx_t;
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int salsa20_init(salsa20_ctx_t *ctx, uchar_t *salt, int saltlen, uchar_t *pwd, int pwd_len, uchar_t *nonce, int enc);
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int salsa20_encrypt(salsa20_ctx_t *ctx, uchar_t *plaintext, uchar_t *ciphertext, uint64_t len, uint64_t id);
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int salsa20_decrypt(salsa20_ctx_t *ctx, uchar_t *ciphertext, uchar_t *plaintext, uint64_t len, uint64_t id);
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uchar_t *salsa20_nonce(salsa20_ctx_t *ctx);
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void salsa20_clean_pkey(salsa20_ctx_t *ctx);
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void salsa20_cleanup(salsa20_ctx_t *ctx);
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#ifdef __cplusplus
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}
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#endif
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#endif
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