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Localise AESContext into sshaes.c.

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All access to AES throughout the code is now done via the ssh2_cipher
vtable interface. All code that previously made direct calls to the
underlying functions (for encrypting and decrypting private key files)
now does it by instantiating an ssh2_cipher.

This removes constraints on the AES module's internal structure, and
allows me to reorganise it as much as I like.
This commit is contained in:
Simon Tatham
2019-01-11 06:32:00 +00:00
parent a3e63c7079
commit 9128454750
3 changed files with 34 additions and 47 deletions
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11
ssh.h
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@ -903,17 +903,6 @@ extern const ssh2_macalg ssh_hmac_sha256;
extern const ssh2_macalg ssh2_poly1305;
extern const ssh_compression_alg ssh_zlib;
typedef struct AESContext AESContext;
AESContext *aes_make_context(void);
void aes_free_context(AESContext *ctx);
void aes128_key(AESContext *ctx, const void *key);
void aes192_key(AESContext *ctx, const void *key);
void aes256_key(AESContext *ctx, const void *key);
void aes_iv(AESContext *ctx, const void *iv);
void aes_ssh2_encrypt_blk(AESContext *ctx, void *blk, int len);
void aes_ssh2_decrypt_blk(AESContext *ctx, void *blk, int len);
void aes_ssh2_sdctr(AESContext *ctx, void *blk, int len);
/*
* PuTTY version number formatted as an SSH version string.
*/