Prepare rustcrypto to merge into rust-openssl

1 files changed, 0 insertions, 277 deletions

diff --git a/src/crypto/symm.rs b/src/crypto/symm.rs
deleted file mode 100644
index d3c54d27..00000000
--- a/src/crypto/symm.rs
+++ /dev/null
@@ -1,277 +0,0 @@
-use std::libc::{c_int, c_uint};
-use std::libc;
-use std::vec;
-
-#[allow(non_camel_case_types)]
-pub type EVP_CIPHER_CTX = *libc::c_void;
-
-#[allow(non_camel_case_types)]
-pub type EVP_CIPHER = *libc::c_void;
-
-#[link(name = "crypto")]
-extern {
-    fn EVP_CIPHER_CTX_new() -> EVP_CIPHER_CTX;
-    fn EVP_CIPHER_CTX_set_padding(ctx: EVP_CIPHER_CTX, padding: c_int);
-    fn EVP_CIPHER_CTX_free(ctx: EVP_CIPHER_CTX);
-
-    fn EVP_aes_128_ecb() -> EVP_CIPHER;
-    fn EVP_aes_128_cbc() -> EVP_CIPHER;
-    // fn EVP_aes_128_ctr() -> EVP_CIPHER;
-    // fn EVP_aes_128_gcm() -> EVP_CIPHER;
-
-    fn EVP_aes_256_ecb() -> EVP_CIPHER;
-    fn EVP_aes_256_cbc() -> EVP_CIPHER;
-    // fn EVP_aes_256_ctr() -> EVP_CIPHER;
-    // fn EVP_aes_256_gcm() -> EVP_CIPHER;
-
-    fn EVP_rc4() -> EVP_CIPHER;
-
-    fn EVP_CipherInit(ctx: EVP_CIPHER_CTX, evp: EVP_CIPHER,
-                      key: *u8, iv: *u8, mode: c_int);
-    fn EVP_CipherUpdate(ctx: EVP_CIPHER_CTX, outbuf: *mut u8,
-                        outlen: &mut c_uint, inbuf: *u8, inlen: c_int);
-    fn EVP_CipherFinal(ctx: EVP_CIPHER_CTX, res: *mut u8, len: &mut c_int);
-}
-
-pub enum Mode {
-    Encrypt,
-    Decrypt,
-}
-
-#[allow(non_camel_case_types)]
-pub enum Type {
-    AES_128_ECB,
-    AES_128_CBC,
-    // AES_128_CTR,
-    //AES_128_GCM,
-
-    AES_256_ECB,
-    AES_256_CBC,
-    // AES_256_CTR,
-    //AES_256_GCM,
-
-    RC4_128,
-}
-
-fn evpc(t: Type) -> (EVP_CIPHER, uint, uint) {
-    unsafe {
-        match t {
-            AES_128_ECB => (EVP_aes_128_ecb(), 16u, 16u),
-            AES_128_CBC => (EVP_aes_128_cbc(), 16u, 16u),
-            // AES_128_CTR => (EVP_aes_128_ctr(), 16u, 0u),
-            //AES_128_GCM => (EVP_aes_128_gcm(), 16u, 16u),
-
-            AES_256_ECB => (EVP_aes_256_ecb(), 32u, 16u),
-            AES_256_CBC => (EVP_aes_256_cbc(), 32u, 16u),
-            // AES_256_CTR => (EVP_aes_256_ctr(), 32u, 0u),
-            //AES_256_GCM => (EVP_aes_256_gcm(), 32u, 16u),
-
-            RC4_128 => (EVP_rc4(), 16u, 0u),
-        }
-    }
-}
-
-/// Represents a symmetric cipher context.
-pub struct Crypter {
-    priv evp: EVP_CIPHER,
-    priv ctx: EVP_CIPHER_CTX,
-    priv keylen: uint,
-    priv blocksize: uint
-}
-
-impl Crypter {
-    pub fn new(t: Type) -> Crypter {
-        let ctx = unsafe { EVP_CIPHER_CTX_new() };
-        let (evp, keylen, blocksz) = evpc(t);
-        Crypter { evp: evp, ctx: ctx, keylen: keylen, blocksize: blocksz }
-    }
-
-    /**
-     * Enables or disables padding. If padding is disabled, total amount of
-     * data encrypted must be a multiple of block size.
-     */
-    pub fn pad(&self, padding: bool) {
-        if self.blocksize > 0 {
-            unsafe {
-                let v = if padding { 1 } else { 0 } as c_int;
-                EVP_CIPHER_CTX_set_padding(self.ctx, v);
-            }
-        }
-    }
-
-    /**
-     * Initializes this crypter.
-     */
-    pub fn init(&self, mode: Mode, key: &[u8], iv: &[u8]) {
-        unsafe {
-            let mode = match mode {
-                Encrypt => 1 as c_int,
-                Decrypt => 0 as c_int,
-            };
-            assert_eq!(key.len(), self.keylen);
-
-            EVP_CipherInit(
-                self.ctx,
-                self.evp,
-                key.as_ptr(),
-                iv.as_ptr(),
-                mode
-            )
-        }
-    }
-
-    /**
-     * Update this crypter with more data to encrypt or decrypt. Returns
-     * encrypted or decrypted bytes.
-     */
-    pub fn update(&self, data: &[u8]) -> ~[u8] {
-        unsafe {
-            let mut res = vec::from_elem(data.len() + self.blocksize, 0u8);
-            let mut reslen = (data.len() + self.blocksize) as u32;
-
-            EVP_CipherUpdate(
-                self.ctx,
-                res.as_mut_ptr(),
-                &mut reslen,
-                data.as_ptr(),
-                data.len() as c_int
-            );
-
-            res.truncate(reslen as uint);
-            res
-        }
-    }
-
-    /**
-     * Finish crypting. Returns the remaining partial block of output, if any.
-     */
-    pub fn final(&self) -> ~[u8] {
-        unsafe {
-            let mut res = vec::from_elem(self.blocksize, 0u8);
-            let mut reslen = self.blocksize as c_int;
-
-            EVP_CipherFinal(self.ctx,
-                                       res.as_mut_ptr(),
-                                       &mut reslen);
-
-            res.truncate(reslen as uint);
-            res
-        }
-    }
-}
-
-impl Drop for Crypter {
-    fn drop(&mut self) {
-        unsafe {
-            EVP_CIPHER_CTX_free(self.ctx);
-        }
-    }
-}
-
-/**
- * Encrypts data, using the specified crypter type in encrypt mode with the
- * specified key and iv; returns the resulting (encrypted) data.
- */
-pub fn encrypt(t: Type, key: &[u8], iv: ~[u8], data: &[u8]) -> ~[u8] {
-    let c = Crypter::new(t);
-    c.init(Encrypt, key, iv);
-    let r = c.update(data);
-    let rest = c.final();
-    r + rest
-}
-
-/**
- * Decrypts data, using the specified crypter type in decrypt mode with the
- * specified key and iv; returns the resulting (decrypted) data.
- */
-pub fn decrypt(t: Type, key: &[u8], iv: ~[u8], data: &[u8]) -> ~[u8] {
-    let c = Crypter::new(t);
-    c.init(Decrypt, key, iv);
-    let r = c.update(data);
-    let rest = c.final();
-    r + rest
-}
-
-#[cfg(test)]
-mod tests {
-    use hex::FromHex;
-
-    // Test vectors from FIPS-197:
-    // http://csrc.nist.gov/publications/fips/fips197/fips-197.pdf
-    #[test]
-    fn test_aes_256_ecb() {
-        let k0 =
-           ~[ 0x00u8, 0x01u8, 0x02u8, 0x03u8, 0x04u8, 0x05u8, 0x06u8, 0x07u8,
-              0x08u8, 0x09u8, 0x0au8, 0x0bu8, 0x0cu8, 0x0du8, 0x0eu8, 0x0fu8,
-              0x10u8, 0x11u8, 0x12u8, 0x13u8, 0x14u8, 0x15u8, 0x16u8, 0x17u8,
-              0x18u8, 0x19u8, 0x1au8, 0x1bu8, 0x1cu8, 0x1du8, 0x1eu8, 0x1fu8 ];
-        let p0 =
-           ~[ 0x00u8, 0x11u8, 0x22u8, 0x33u8, 0x44u8, 0x55u8, 0x66u8, 0x77u8,
-              0x88u8, 0x99u8, 0xaau8, 0xbbu8, 0xccu8, 0xddu8, 0xeeu8, 0xffu8 ];
-        let c0 =
-           ~[ 0x8eu8, 0xa2u8, 0xb7u8, 0xcau8, 0x51u8, 0x67u8, 0x45u8, 0xbfu8,
-              0xeau8, 0xfcu8, 0x49u8, 0x90u8, 0x4bu8, 0x49u8, 0x60u8, 0x89u8 ];
-        let c = super::Crypter::new(super::AES_256_ECB);
-        c.init(super::Encrypt, k0, []);
-        c.pad(false);
-        let r0 = c.update(p0) + c.final();
-        assert!(r0 == c0);
-        c.init(super::Decrypt, k0, []);
-        c.pad(false);
-        let p1 = c.update(r0) + c.final();
-        assert!(p1 == p0);
-    }
-
-    fn cipher_test(ciphertype: super::Type, pt: ~str, ct: ~str, key: ~str, iv: ~str) {
-        use hex::ToHex;
-
-        let cipher = super::Crypter::new(ciphertype);
-        cipher.init(super::Encrypt, key.from_hex(), iv.from_hex());
-
-        let expected = ct.from_hex();
-        let computed = cipher.update(pt.from_hex()) + cipher.final();
-
-        if computed != expected {
-            println!("Computed: {}", computed.to_hex());
-            println!("Expected: {}", expected.to_hex());
-            if computed.len() != expected.len() {
-                println!("Lengths differ: {} in computed vs {} expected",
-                         computed.len(), expected.len());
-            }
-            fail!("test failure");
-        }
-    }
-
-    #[test]
-    fn test_rc4() {
-
-        let pt = ~"0000000000000000000000000000000000000000000000000000000000000000000000000000";
-        let ct = ~"A68686B04D686AA107BD8D4CAB191A3EEC0A6294BC78B60F65C25CB47BD7BB3A48EFC4D26BE4";
-        let key = ~"97CD440324DA5FD1F7955C1C13B6B466";
-        let iv = ~"";
-
-        cipher_test(super::RC4_128, pt, ct, key, iv);
-    }
-
-    /*#[test]
-    fn test_aes128_ctr() {
-
-        let pt = ~"6BC1BEE22E409F96E93D7E117393172AAE2D8A571E03AC9C9EB76FAC45AF8E5130C81C46A35CE411E5FBC1191A0A52EFF69F2445DF4F9B17AD2B417BE66C3710";
-        let ct = ~"874D6191B620E3261BEF6864990DB6CE9806F66B7970FDFF8617187BB9FFFDFF5AE4DF3EDBD5D35E5B4F09020DB03EAB1E031DDA2FBE03D1792170A0F3009CEE";
-        let key = ~"2B7E151628AED2A6ABF7158809CF4F3C";
-        let iv = ~"F0F1F2F3F4F5F6F7F8F9FAFBFCFDFEFF";
-
-        cipher_test(super::AES_128_CTR, pt, ct, key, iv);
-    }*/
-
-    /*#[test]
-    fn test_aes128_gcm() {
-        // Test case 3 in GCM spec
-        let pt = ~"d9313225f88406e5a55909c5aff5269a86a7a9531534f7da2e4c303d8a318a721c3c0c95956809532fcf0e2449a6b525b16aedf5aa0de657ba637b391aafd255";
-        let ct = ~"42831ec2217774244b7221b784d0d49ce3aa212f2c02a4e035c17e2329aca12e21d514b25466931c7d8f6a5aac84aa051ba30b396a0aac973d58e091473f59854d5c2af327cd64a62cf35abd2ba6fab4";
-        let key = ~"feffe9928665731c6d6a8f9467308308";
-        let iv = ~"cafebabefacedbaddecaf888";
-
-        cipher_test(super::AES_128_GCM, pt, ct, key, iv);
-    }*/
-}