third_party/rust_crates/vendor/salsa20/tests/lib.rs

//! Salsa20 tests

use cipher::{generic_array::GenericArray, NewCipher, StreamCipher, StreamCipherSeek};
use salsa20::Salsa20;
#[cfg(feature = "xsalsa20")]
use salsa20::XSalsa20;

cipher::stream_cipher_seek_test!(salsa20_seek, Salsa20);
#[cfg(feature = "xsalsa20")]
cipher::stream_cipher_seek_test!(xsalsa20_seek, XSalsa20);

#[cfg(test)]
const KEY_BYTES: usize = 32;

#[cfg(test)]
const IV_BYTES: usize = 8;

#[cfg(feature = "xsalsa20")]
#[cfg(test)]
const IV_BYTES_XSALSA20: usize = 24;

#[cfg(test)]
const KEY0: [u8; KEY_BYTES] = [
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
];

#[cfg(test)]
const KEY1: [u8; KEY_BYTES] = [
    0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
];

#[cfg(test)]
const KEY_LONG: [u8; KEY_BYTES] = [
    1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26,
    27, 28, 29, 30, 31, 32,
];

#[cfg(feature = "xsalsa20")]
#[cfg(test)]
const KEY_XSALSA20: [u8; KEY_BYTES] = *b"this is 32-byte key for xsalsa20";

#[cfg(test)]
const IV0: [u8; IV_BYTES] = [0; IV_BYTES];

#[cfg(test)]
const IV1: [u8; IV_BYTES] = [0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00];

#[cfg(test)]
const IVHI: [u8; IV_BYTES] = [0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01];

#[cfg(test)]
const IV_LONG: [u8; IV_BYTES] = [3, 1, 4, 1, 5, 9, 2, 6];

#[cfg(feature = "xsalsa20")]
#[cfg(test)]
const IV_XSALSA20: [u8; IV_BYTES_XSALSA20] = *b"24-byte nonce for xsalsa";

#[cfg(test)]
const EXPECTED_KEY1_IV0: [u8; 64] = [
    0xe3, 0xbe, 0x8f, 0xdd, 0x8b, 0xec, 0xa2, 0xe3, 0xea, 0x8e, 0xf9, 0x47, 0x5b, 0x29, 0xa6, 0xe7,
    0x00, 0x39, 0x51, 0xe1, 0x09, 0x7a, 0x5c, 0x38, 0xd2, 0x3b, 0x7a, 0x5f, 0xad, 0x9f, 0x68, 0x44,
    0xb2, 0x2c, 0x97, 0x55, 0x9e, 0x27, 0x23, 0xc7, 0xcb, 0xbd, 0x3f, 0xe4, 0xfc, 0x8d, 0x9a, 0x07,
    0x44, 0x65, 0x2a, 0x83, 0xe7, 0x2a, 0x9c, 0x46, 0x18, 0x76, 0xaf, 0x4d, 0x7e, 0xf1, 0xa1, 0x17,
];

#[cfg(test)]
const EXPECTED_KEY0_IV1: [u8; 64] = [
    0x2a, 0xba, 0x3d, 0xc4, 0x5b, 0x49, 0x47, 0x00, 0x7b, 0x14, 0xc8, 0x51, 0xcd, 0x69, 0x44, 0x56,
    0xb3, 0x03, 0xad, 0x59, 0xa4, 0x65, 0x66, 0x28, 0x03, 0x00, 0x67, 0x05, 0x67, 0x3d, 0x6c, 0x3e,
    0x29, 0xf1, 0xd3, 0x51, 0x0d, 0xfc, 0x04, 0x05, 0x46, 0x3c, 0x03, 0x41, 0x4e, 0x0e, 0x07, 0xe3,
    0x59, 0xf1, 0xf1, 0x81, 0x6c, 0x68, 0xb2, 0x43, 0x4a, 0x19, 0xd3, 0xee, 0xe0, 0x46, 0x48, 0x73,
];

#[cfg(test)]
const EXPECTED_KEY0_IVHI: [u8; 64] = [
    0xb4, 0x7f, 0x96, 0xaa, 0x96, 0x78, 0x61, 0x35, 0x29, 0x7a, 0x3c, 0x4e, 0xc5, 0x6a, 0x61, 0x3d,
    0x0b, 0x80, 0x09, 0x53, 0x24, 0xff, 0x43, 0x23, 0x9d, 0x68, 0x4c, 0x57, 0xff, 0xe4, 0x2e, 0x1c,
    0x44, 0xf3, 0xcc, 0x01, 0x16, 0x13, 0xdb, 0x6c, 0xdc, 0x88, 0x09, 0x99, 0xa1, 0xe6, 0x5a, 0xed,
    0x12, 0x87, 0xfc, 0xb1, 0x1c, 0x83, 0x9c, 0x37, 0x12, 0x07, 0x65, 0xaf, 0xa7, 0x3e, 0x50, 0x75,
];

#[cfg(test)]
const EXPECTED_LONG: [u8; 256] = [
    0x6e, 0xbc, 0xbd, 0xbf, 0x76, 0xfc, 0xcc, 0x64, 0xab, 0x05, 0x54, 0x2b, 0xee, 0x8a, 0x67, 0xcb,
    0xc2, 0x8f, 0xa2, 0xe1, 0x41, 0xfb, 0xef, 0xbb, 0x3a, 0x2f, 0x9b, 0x22, 0x19, 0x09, 0xc8, 0xd7,
    0xd4, 0x29, 0x52, 0x58, 0xcb, 0x53, 0x97, 0x70, 0xdd, 0x24, 0xd7, 0xac, 0x34, 0x43, 0x76, 0x9f,
    0xfa, 0x27, 0xa5, 0x0e, 0x60, 0x64, 0x42, 0x64, 0xdc, 0x8b, 0x6b, 0x61, 0x26, 0x83, 0x37, 0x2e,
    0x08, 0x5d, 0x0a, 0x12, 0xbf, 0x24, 0x0b, 0x18, 0x9c, 0xe2, 0xb7, 0x82, 0x89, 0x86, 0x2b, 0x56,
    0xfd, 0xc9, 0xfc, 0xff, 0xc3, 0x3b, 0xef, 0x93, 0x25, 0xa2, 0xe8, 0x1b, 0x98, 0xfb, 0x3f, 0xb9,
    0xaa, 0x04, 0xcf, 0x43, 0x46, 0x15, 0xce, 0xff, 0xeb, 0x98, 0x5c, 0x1c, 0xb0, 0x8d, 0x84, 0x40,
    0xe9, 0x0b, 0x1d, 0x56, 0xdd, 0xea, 0xea, 0x16, 0xd9, 0xe1, 0x5a, 0xff, 0xff, 0x1f, 0x69, 0x8c,
    0x48, 0x3c, 0x7a, 0x46, 0x6a, 0xf1, 0xfe, 0x06, 0x25, 0x74, 0xad, 0xfd, 0x2b, 0x06, 0xa6, 0x2b,
    0x4d, 0x98, 0x44, 0x07, 0x19, 0xea, 0x77, 0x63, 0x85, 0xc4, 0x70, 0x34, 0x9a, 0x7e, 0xd6, 0x96,
    0x95, 0x83, 0x46, 0x3e, 0xd5, 0xd2, 0x6b, 0x8f, 0xef, 0xcc, 0xb2, 0x05, 0xda, 0x0f, 0x5b, 0xfa,
    0x98, 0xc7, 0x78, 0x12, 0xfe, 0x75, 0x6b, 0x09, 0xea, 0xcc, 0x28, 0x2a, 0xa4, 0x2f, 0x4b, 0xaf,
    0xa7, 0x96, 0x33, 0x18, 0x90, 0x46, 0xe2, 0xb2, 0x0f, 0x35, 0xb3, 0xe0, 0xe5, 0x4a, 0xa3, 0xb9,
    0x29, 0xe2, 0x3c, 0x0f, 0x47, 0xdc, 0x7b, 0xcd, 0x4f, 0x92, 0x8b, 0x2a, 0x97, 0x64, 0xbe, 0x7d,
    0x4b, 0x8a, 0x50, 0xf9, 0x80, 0xa5, 0x0b, 0x35, 0xad, 0x80, 0x87, 0x37, 0x5e, 0x0c, 0x55, 0x6e,
    0xcb, 0xe6, 0xa7, 0x16, 0x1e, 0x86, 0x53, 0xce, 0x93, 0x91, 0xe1, 0xe6, 0x71, 0x0e, 0xd4, 0xf1,
];

#[cfg(feature = "xsalsa20")]
#[cfg(test)]
const EXPECTED_XSALSA20_ZEROS: [u8; 64] = [
    0x48, 0x48, 0x29, 0x7f, 0xeb, 0x1f, 0xb5, 0x2f, 0xb6, 0x6d, 0x81, 0x60, 0x9b, 0xd5, 0x47, 0xfa,
    0xbc, 0xbe, 0x70, 0x26, 0xed, 0xc8, 0xb5, 0xe5, 0xe4, 0x49, 0xd0, 0x88, 0xbf, 0xa6, 0x9c, 0x08,
    0x8f, 0x5d, 0x8d, 0xa1, 0xd7, 0x91, 0x26, 0x7c, 0x2c, 0x19, 0x5a, 0x7f, 0x8c, 0xae, 0x9c, 0x4b,
    0x40, 0x50, 0xd0, 0x8c, 0xe6, 0xd3, 0xa1, 0x51, 0xec, 0x26, 0x5f, 0x3a, 0x58, 0xe4, 0x76, 0x48,
];

#[cfg(feature = "xsalsa20")]
#[cfg(test)]
const EXPECTED_XSALSA20_HELLO_WORLD: [u8; 12] = [
    0x00, 0x2d, 0x45, 0x13, 0x84, 0x3f, 0xc2, 0x40, 0xc4, 0x01, 0xe5, 0x41,
];

#[test]
fn salsa20_key1_iv0() {
    let mut cipher = Salsa20::new(&GenericArray::from(KEY1), &GenericArray::from(IV0));
    let mut buf = [0; 64];

    cipher.apply_keystream(&mut buf);

    for i in 0..64 {
        assert_eq!(buf[i], EXPECTED_KEY1_IV0[i])
    }
}

#[test]
fn salsa20_key0_iv1() {
    let mut cipher = Salsa20::new(&GenericArray::from(KEY0), &GenericArray::from(IV1));
    let mut buf = [0; 64];

    cipher.apply_keystream(&mut buf);

    for i in 0..64 {
        assert_eq!(buf[i], EXPECTED_KEY0_IV1[i])
    }
}

#[test]
fn salsa20_key0_ivhi() {
    let mut cipher = Salsa20::new(&GenericArray::from(KEY0), &GenericArray::from(IVHI));
    let mut buf = [0; 64];

    cipher.apply_keystream(&mut buf);

    for i in 0..64 {
        assert_eq!(buf[i], EXPECTED_KEY0_IVHI[i])
    }
}

#[test]
fn salsa20_long() {
    let mut cipher = Salsa20::new(&GenericArray::from(KEY_LONG), &GenericArray::from(IV_LONG));
    let mut buf = [0; 256];

    cipher.apply_keystream(&mut buf);

    for i in 0..256 {
        assert_eq!(buf[i], EXPECTED_LONG[i])
    }
}

#[test]
#[ignore]
fn salsa20_offsets() {
    for idx in 0..256 {
        for middle in idx..256 {
            for last in middle..256 {
                let mut cipher =
                    Salsa20::new(&GenericArray::from(KEY_LONG), &GenericArray::from(IV_LONG));
                let mut buf = [0; 256];

                cipher.seek(idx as u64);
                cipher.apply_keystream(&mut buf[idx..middle]);
                cipher.apply_keystream(&mut buf[middle..last]);

                for k in idx..last {
                    assert_eq!(buf[k], EXPECTED_LONG[k])
                }
            }
        }
    }
}

#[cfg(feature = "xsalsa20")]
#[test]
fn xsalsa20_encrypt_zeros() {
    let key = GenericArray::from(KEY_XSALSA20);
    let iv = GenericArray::from(IV_XSALSA20);

    let mut cipher = XSalsa20::new(&key, &iv);
    let mut buf = [0; 64];
    cipher.apply_keystream(&mut buf);

    for i in 0..64 {
        assert_eq!(buf[i], EXPECTED_XSALSA20_ZEROS[i]);
    }
}

#[cfg(feature = "xsalsa20")]
#[test]
fn xsalsa20_encrypt_hello_world() {
    let key = GenericArray::from(KEY_XSALSA20);
    let iv = GenericArray::from(IV_XSALSA20);

    let mut cipher = XSalsa20::new(&key, &iv);
    let mut buf = *b"Hello world!";
    cipher.apply_keystream(&mut buf);

    assert_eq!(buf, EXPECTED_XSALSA20_HELLO_WORLD);
}