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-rw-r--r--vendor/openssl/src/sha.rs463
1 files changed, 463 insertions, 0 deletions
diff --git a/vendor/openssl/src/sha.rs b/vendor/openssl/src/sha.rs
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+//! The SHA family of hashes.
+//!
+//! SHA, or Secure Hash Algorithms, are a family of cryptographic hashing algorithms published by
+//! the National Institute of Standards and Technology (NIST). Hash algorithms such as those in
+//! the SHA family are used to map data of an arbitrary size to a fixed-size string of bytes.
+//! As cryptographic hashing algorithms, these mappings have the property of being irreversible.
+//! This property makes hash algorithms like these excellent for uses such as verifying the
+//! contents of a file- if you know the hash you expect beforehand, then you can verify that the
+//! data you have is correct if it hashes to the same value.
+//!
+//! # Examples
+//!
+//! When dealing with data that becomes available in chunks, such as while buffering data from IO,
+//! you can create a hasher that you can repeatedly update to add bytes to.
+//!
+//! ```rust
+//! use openssl::sha;
+//!
+//! let mut hasher = sha::Sha256::new();
+//!
+//! hasher.update(b"Hello, ");
+//! hasher.update(b"world");
+//!
+//! let hash = hasher.finish();
+//! println!("Hashed \"Hello, world\" to {}", hex::encode(hash));
+//! ```
+//!
+//! On the other hand, if you already have access to all of the data you would like to hash, you
+//! may prefer to use the slightly simpler method of simply calling the hash function corresponding
+//! to the algorithm you want to use.
+//!
+//! ```rust
+//! use openssl::sha::sha256;
+//!
+//! let hash = sha256(b"your data or message");
+//! println!("Hash = {}", hex::encode(hash));
+//! ```
+use cfg_if::cfg_if;
+use libc::c_void;
+use openssl_macros::corresponds;
+use std::mem::MaybeUninit;
+
+/// Computes the SHA1 hash of some data.
+///
+/// # Warning
+///
+/// SHA1 is known to be insecure - it should not be used unless required for
+/// compatibility with existing systems.
+#[corresponds(SHA1)]
+#[inline]
+pub fn sha1(data: &[u8]) -> [u8; 20] {
+ unsafe {
+ let mut hash = MaybeUninit::<[u8; 20]>::uninit();
+ ffi::SHA1(data.as_ptr(), data.len(), hash.as_mut_ptr() as *mut _);
+ hash.assume_init()
+ }
+}
+
+/// Computes the SHA224 hash of some data.
+#[corresponds(SHA224)]
+#[inline]
+pub fn sha224(data: &[u8]) -> [u8; 28] {
+ unsafe {
+ let mut hash = MaybeUninit::<[u8; 28]>::uninit();
+ ffi::SHA224(data.as_ptr(), data.len(), hash.as_mut_ptr() as *mut _);
+ hash.assume_init()
+ }
+}
+
+/// Computes the SHA256 hash of some data.
+#[corresponds(SHA256)]
+#[inline]
+pub fn sha256(data: &[u8]) -> [u8; 32] {
+ unsafe {
+ let mut hash = MaybeUninit::<[u8; 32]>::uninit();
+ ffi::SHA256(data.as_ptr(), data.len(), hash.as_mut_ptr() as *mut _);
+ hash.assume_init()
+ }
+}
+
+/// Computes the SHA384 hash of some data.
+#[corresponds(SHA384)]
+#[inline]
+pub fn sha384(data: &[u8]) -> [u8; 48] {
+ unsafe {
+ let mut hash = MaybeUninit::<[u8; 48]>::uninit();
+ ffi::SHA384(data.as_ptr(), data.len(), hash.as_mut_ptr() as *mut _);
+ hash.assume_init()
+ }
+}
+
+/// Computes the SHA512 hash of some data.
+#[corresponds(SHA512)]
+#[inline]
+pub fn sha512(data: &[u8]) -> [u8; 64] {
+ unsafe {
+ let mut hash = MaybeUninit::<[u8; 64]>::uninit();
+ ffi::SHA512(data.as_ptr(), data.len(), hash.as_mut_ptr() as *mut _);
+ hash.assume_init()
+ }
+}
+
+cfg_if! {
+ if #[cfg(not(osslconf = "OPENSSL_NO_DEPRECATED_3_0"))] {
+ /// An object which calculates a SHA1 hash of some data.
+ ///
+ /// # Warning
+ ///
+ /// SHA1 is known to be insecure - it should not be used unless required for
+ /// compatibility with existing systems.
+ #[derive(Clone)]
+ pub struct Sha1(ffi::SHA_CTX);
+
+ impl Default for Sha1 {
+ #[inline]
+ fn default() -> Sha1 {
+ Sha1::new()
+ }
+ }
+
+ impl Sha1 {
+ /// Creates a new hasher.
+ #[corresponds(SHA1_Init)]
+ #[inline]
+ pub fn new() -> Sha1 {
+ unsafe {
+ let mut ctx = MaybeUninit::uninit();
+ ffi::SHA1_Init( ctx.as_mut_ptr());
+ Sha1(ctx.assume_init())
+ }
+ }
+
+ /// Feeds some data into the hasher.
+ ///
+ /// This can be called multiple times.
+ #[corresponds(SHA1_Update)]
+ #[inline]
+ pub fn update(&mut self, buf: &[u8]) {
+ unsafe {
+ ffi::SHA1_Update(&mut self.0, buf.as_ptr() as *const c_void, buf.len());
+ }
+ }
+
+ /// Returns the hash of the data.
+ #[corresponds(SHA1_Final)]
+ #[inline]
+ pub fn finish(mut self) -> [u8; 20] {
+ unsafe {
+ let mut hash = MaybeUninit::<[u8; 20]>::uninit();
+ ffi::SHA1_Final(hash.as_mut_ptr() as *mut _, &mut self.0);
+ hash.assume_init()
+ }
+ }
+ }
+
+ /// An object which calculates a SHA224 hash of some data.
+ #[derive(Clone)]
+ pub struct Sha224(ffi::SHA256_CTX);
+
+ impl Default for Sha224 {
+ #[inline]
+ fn default() -> Sha224 {
+ Sha224::new()
+ }
+ }
+
+ impl Sha224 {
+ /// Creates a new hasher.
+ #[corresponds(SHA224_Init)]
+ #[inline]
+ pub fn new() -> Sha224 {
+ unsafe {
+ let mut ctx = MaybeUninit::uninit();
+ ffi::SHA224_Init(ctx.as_mut_ptr());
+ Sha224(ctx.assume_init())
+ }
+ }
+
+ /// Feeds some data into the hasher.
+ ///
+ /// This can be called multiple times.
+ #[corresponds(SHA224_Update)]
+ #[inline]
+ pub fn update(&mut self, buf: &[u8]) {
+ unsafe {
+ ffi::SHA224_Update(&mut self.0, buf.as_ptr() as *const c_void, buf.len());
+ }
+ }
+
+ /// Returns the hash of the data.
+ #[corresponds(SHA224_Final)]
+ #[inline]
+ pub fn finish(mut self) -> [u8; 28] {
+ unsafe {
+ let mut hash = MaybeUninit::<[u8; 28]>::uninit();
+ ffi::SHA224_Final(hash.as_mut_ptr() as *mut _, &mut self.0);
+ hash.assume_init()
+ }
+ }
+ }
+
+ /// An object which calculates a SHA256 hash of some data.
+ #[derive(Clone)]
+ pub struct Sha256(ffi::SHA256_CTX);
+
+ impl Default for Sha256 {
+ #[inline]
+ fn default() -> Sha256 {
+ Sha256::new()
+ }
+ }
+
+ impl Sha256 {
+ /// Creates a new hasher.
+ #[corresponds(SHA256_Init)]
+ #[inline]
+ pub fn new() -> Sha256 {
+ unsafe {
+ let mut ctx = MaybeUninit::uninit();
+ ffi::SHA256_Init(ctx.as_mut_ptr());
+ Sha256(ctx.assume_init())
+ }
+ }
+
+ /// Feeds some data into the hasher.
+ ///
+ /// This can be called multiple times.
+ #[corresponds(SHA256_Update)]
+ #[inline]
+ pub fn update(&mut self, buf: &[u8]) {
+ unsafe {
+ ffi::SHA256_Update(&mut self.0, buf.as_ptr() as *const c_void, buf.len());
+ }
+ }
+
+ /// Returns the hash of the data.
+ #[corresponds(SHA256_Final)]
+ #[inline]
+ pub fn finish(mut self) -> [u8; 32] {
+ unsafe {
+ let mut hash = MaybeUninit::<[u8; 32]>::uninit();
+ ffi::SHA256_Final(hash.as_mut_ptr() as *mut _, &mut self.0);
+ hash.assume_init()
+ }
+ }
+ }
+
+ /// An object which calculates a SHA384 hash of some data.
+ #[derive(Clone)]
+ pub struct Sha384(ffi::SHA512_CTX);
+
+ impl Default for Sha384 {
+ #[inline]
+ fn default() -> Sha384 {
+ Sha384::new()
+ }
+ }
+
+ impl Sha384 {
+ /// Creates a new hasher.
+ #[corresponds(SHA384_Init)]
+ #[inline]
+ pub fn new() -> Sha384 {
+ unsafe {
+ let mut ctx = MaybeUninit::uninit();
+ ffi::SHA384_Init(ctx.as_mut_ptr());
+ Sha384(ctx.assume_init())
+ }
+ }
+
+ /// Feeds some data into the hasher.
+ ///
+ /// This can be called multiple times.
+ #[corresponds(SHA384_Update)]
+ #[inline]
+ pub fn update(&mut self, buf: &[u8]) {
+ unsafe {
+ ffi::SHA384_Update(&mut self.0, buf.as_ptr() as *const c_void, buf.len());
+ }
+ }
+
+ /// Returns the hash of the data.
+ #[corresponds(SHA384_Final)]
+ #[inline]
+ pub fn finish(mut self) -> [u8; 48] {
+ unsafe {
+ let mut hash = MaybeUninit::<[u8; 48]>::uninit();
+ ffi::SHA384_Final(hash.as_mut_ptr() as *mut _, &mut self.0);
+ hash.assume_init()
+ }
+ }
+ }
+
+ /// An object which calculates a SHA512 hash of some data.
+ #[derive(Clone)]
+ pub struct Sha512(ffi::SHA512_CTX);
+
+ impl Default for Sha512 {
+ #[inline]
+ fn default() -> Sha512 {
+ Sha512::new()
+ }
+ }
+
+ impl Sha512 {
+ /// Creates a new hasher.
+ #[corresponds(SHA512_Init)]
+ #[inline]
+ pub fn new() -> Sha512 {
+ unsafe {
+ let mut ctx = MaybeUninit::uninit();
+ ffi::SHA512_Init(ctx.as_mut_ptr());
+ Sha512(ctx.assume_init())
+ }
+ }
+
+ /// Feeds some data into the hasher.
+ ///
+ /// This can be called multiple times.
+ #[corresponds(SHA512_Update)]
+ #[inline]
+ pub fn update(&mut self, buf: &[u8]) {
+ unsafe {
+ ffi::SHA512_Update(&mut self.0, buf.as_ptr() as *const c_void, buf.len());
+ }
+ }
+
+ /// Returns the hash of the data.
+ #[corresponds(SHA512_Final)]
+ #[inline]
+ pub fn finish(mut self) -> [u8; 64] {
+ unsafe {
+ let mut hash= MaybeUninit::<[u8; 64]>::uninit();
+ ffi::SHA512_Final(hash.as_mut_ptr() as *mut _, &mut self.0);
+ hash.assume_init()
+ }
+ }
+ }
+ }
+}
+
+#[cfg(test)]
+mod test {
+ use super::*;
+
+ #[test]
+ fn standalone_1() {
+ let data = b"abc";
+ let expected = "a9993e364706816aba3e25717850c26c9cd0d89d";
+
+ assert_eq!(hex::encode(sha1(data)), expected);
+ }
+
+ #[test]
+ #[cfg(not(osslconf = "OPENSSL_NO_DEPRECATED_3_0"))]
+ fn struct_1() {
+ let expected = "a9993e364706816aba3e25717850c26c9cd0d89d";
+
+ let mut hasher = Sha1::new();
+ hasher.update(b"a");
+ hasher.update(b"bc");
+ assert_eq!(hex::encode(hasher.finish()), expected);
+ }
+
+ #[test]
+ #[cfg(not(osslconf = "OPENSSL_NO_DEPRECATED_3_0"))]
+ fn cloning_allows_incremental_hashing() {
+ let expected = "a9993e364706816aba3e25717850c26c9cd0d89d";
+
+ let mut hasher = Sha1::new();
+ hasher.update(b"a");
+
+ let mut incr_hasher = hasher.clone();
+ incr_hasher.update(b"bc");
+
+ assert_eq!(hex::encode(incr_hasher.finish()), expected);
+ assert_ne!(hex::encode(hasher.finish()), expected);
+ }
+
+ #[test]
+ fn standalone_224() {
+ let data = b"abc";
+ let expected = "23097d223405d8228642a477bda255b32aadbce4bda0b3f7e36c9da7";
+
+ assert_eq!(hex::encode(sha224(data)), expected);
+ }
+
+ #[test]
+ #[cfg(not(osslconf = "OPENSSL_NO_DEPRECATED_3_0"))]
+ fn struct_224() {
+ let expected = "23097d223405d8228642a477bda255b32aadbce4bda0b3f7e36c9da7";
+
+ let mut hasher = Sha224::new();
+ hasher.update(b"a");
+ hasher.update(b"bc");
+ assert_eq!(hex::encode(hasher.finish()), expected);
+ }
+
+ #[test]
+ fn standalone_256() {
+ let data = b"abc";
+ let expected = "ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad";
+
+ assert_eq!(hex::encode(sha256(data)), expected);
+ }
+
+ #[test]
+ #[cfg(not(osslconf = "OPENSSL_NO_DEPRECATED_3_0"))]
+ fn struct_256() {
+ let expected = "ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad";
+
+ let mut hasher = Sha256::new();
+ hasher.update(b"a");
+ hasher.update(b"bc");
+ assert_eq!(hex::encode(hasher.finish()), expected);
+ }
+
+ #[test]
+ fn standalone_384() {
+ let data = b"abc";
+ let expected =
+ "cb00753f45a35e8bb5a03d699ac65007272c32ab0eded1631a8b605a43ff5bed8086072ba1e\
+ 7cc2358baeca134c825a7";
+
+ assert_eq!(hex::encode(&sha384(data)[..]), expected);
+ }
+
+ #[test]
+ #[cfg(not(osslconf = "OPENSSL_NO_DEPRECATED_3_0"))]
+ fn struct_384() {
+ let expected =
+ "cb00753f45a35e8bb5a03d699ac65007272c32ab0eded1631a8b605a43ff5bed8086072ba1e\
+ 7cc2358baeca134c825a7";
+
+ let mut hasher = Sha384::new();
+ hasher.update(b"a");
+ hasher.update(b"bc");
+ assert_eq!(hex::encode(&hasher.finish()[..]), expected);
+ }
+
+ #[test]
+ fn standalone_512() {
+ let data = b"abc";
+ let expected =
+ "ddaf35a193617abacc417349ae20413112e6fa4e89a97ea20a9eeee64b55d39a2192992a274\
+ fc1a836ba3c23a3feebbd454d4423643ce80e2a9ac94fa54ca49f";
+
+ assert_eq!(hex::encode(&sha512(data)[..]), expected);
+ }
+
+ #[test]
+ #[cfg(not(osslconf = "OPENSSL_NO_DEPRECATED_3_0"))]
+ fn struct_512() {
+ let expected =
+ "ddaf35a193617abacc417349ae20413112e6fa4e89a97ea20a9eeee64b55d39a2192992a274\
+ fc1a836ba3c23a3feebbd454d4423643ce80e2a9ac94fa54ca49f";
+
+ let mut hasher = Sha512::new();
+ hasher.update(b"a");
+ hasher.update(b"bc");
+ assert_eq!(hex::encode(&hasher.finish()[..]), expected);
+ }
+}
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