rscrypto 0.4.1

Pure Rust Cryptography: RSA, Ed25519, X25519, SHA-2/3, BLAKE2/3, AES-GCM/GCM-SIV, X/ChaCha20-Poly1305, Argon2, HMAC/HKDF, CRC. no_std, WASM, hardware acceleration.
Documentation 
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// WebAssembly Detection

#[cfg(target_arch = "wasm32")]
fn detect_wasm32() -> Detected {
  use crate::platform::caps::wasm;

  let mut caps = Caps::NONE;

  if cfg!(target_feature = "simd128") {
    caps |= wasm::SIMD128;
  }
  if cfg!(target_feature = "relaxed-simd") {
    caps |= wasm::RELAXED_SIMD;
  }

  Detected {
    caps,
    arch: Arch::Wasm32,
  }
}

#[cfg(target_arch = "wasm64")]
fn detect_wasm64() -> Detected {
  use crate::platform::caps::wasm;

  let mut caps = Caps::NONE;

  if cfg!(target_feature = "simd128") {
    caps |= wasm::SIMD128;
  }
  if cfg!(target_feature = "relaxed-simd") {
    caps |= wasm::RELAXED_SIMD;
  }

  Detected {
    caps,
    arch: Arch::Wasm64,
  }
}

// Tests