1 files changed, 0 insertions, 97 deletions
diff --git a/sys/dev/random/chacha20.c b/sys/dev/random/chacha20.c
deleted file mode 100644
index 41f823c..0000000
--- a/sys/dev/random/chacha20.c
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- * Copyright (c) 2023-2025 Ian Marco Moffett and the Osmora Team.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- *    this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. Neither the name of Hyra nor the names of its
- *    contributors may be used to endorse or promote products derived from
- *    this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include <dev/random/chacha20.h>
-
-static const char sigma[16] = "expand 32-byte k";
-
-void chacha20_init(uint32_t state[16], const uint8_t key[32],
-    const uint8_t nonce[12], uint32_t counter)
-{
-    state[0] = ((uint32_t *)sigma)[0];
-    state[1] = ((uint32_t *)sigma)[1];
-    state[2] = ((uint32_t *)sigma)[2];
-    state[3] = ((uint32_t *)sigma)[3];
-
-    for (int i = 0; i < 8; ++i) {
-        state[4 + i] = ((uint32_t *)key)[i];
-    }
-
-    state[12] = counter;
-    state[13] = ((uint32_t *)nonce)[0];
-    state[14] = ((uint32_t *)nonce)[1];
-    state[15] = ((uint32_t *)nonce)[2];
-}
-
-void
-chacha20_block(uint32_t state[16], uint8_t out[64])
-{
-    uint32_t x[16];
-    memcpy(x, state, sizeof(x));
-
-    for (int i = 0; i < 10; i++) {
-
-        QR(x[0], x[4], x[8], x[12]);
-        QR(x[1], x[5], x[9], x[13]);
-        QR(x[2], x[6], x[10], x[14]);
-        QR(x[3], x[7], x[11], x[15]);
-
-        QR(x[0], x[5], x[10], x[15]);
-        QR(x[1], x[6], x[11], x[12]);
-        QR(x[2], x[7], x[8], x[13]);
-        QR(x[3], x[4], x[9], x[14]);
-    }
-
-    for (int i = 0; i < 16; ++i) {
-        x[i] += state[i];
-        ((uint32_t *)out)[i] = x[i];
-    }
-
-    state[12]++;
-}
-
-void
-chacha20_encrypt(uint32_t state[16], uint8_t *in,
-    uint8_t *out, size_t len)
-{
-    uint8_t block[64];
-    size_t offset = 0;
-
-    while (len > 0) {
-        chacha20_block(state, block);
-        size_t n = len > 64 ? 64 : len;
-
-        for (size_t i = 0; i < n; ++i) {
-            out[offset + i] = in ? in[offset + i] ^ block[i] : block[i];
-        }
-
-        offset += n;
-        len -= n;
-    }
-}