wtx 0.52.0

A collection of different transport implementations and related tools focused primarily on web technologies.
Documentation 
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use crate::crypto::{Hash as _, Sha256Global, Sha384Global, Sha512Global};

/// Hash Type
#[derive(Clone, Copy, Debug, Default, Eq, PartialEq)]
pub enum HashTy {
  /// Resulting hash has 32 bytes
  #[default]
  Sha256,
  /// Resulting hash has 48 bytes
  Sha384,
  /// Resulting hash has 64 bytes
  Sha512,
}

impl HashTy {
  /// Instance that has the minimum hash length
  pub const MIN: Self = Self::Sha256;
  /// Instance that has the maximum hash length
  pub const MAX: Self = Self::Sha512;

  /// Calls the digest method of the corresponding instance value according to the crypto backend
  /// chose at compile-time.
  #[inline]
  pub fn digest<'data, T>(
    self,
    data: impl IntoIterator<Item = &'data [u8]>,
    cb: impl FnOnce(&[u8]) -> T,
  ) -> T {
    match self {
      HashTy::Sha256 => cb(&Sha256Global::digest(data)),
      HashTy::Sha384 => cb(&Sha384Global::digest(data)),
      HashTy::Sha512 => cb(&Sha512Global::digest(data)),
    }
  }

  /// Hash length of the current instance.
  #[inline]
  pub const fn len(&self) -> usize {
    match self {
      HashTy::Sha256 => 32,
      HashTy::Sha384 => 48,
      HashTy::Sha512 => 64,
    }
  }

  #[inline]
  #[cfg(feature = "crypto-alr")]
  pub(crate) const fn rsa_pkcs1_enc_alr(
    self,
  ) -> &'static aws_lc_rs::signature::RsaSignatureEncoding {
    match self {
      HashTy::Sha256 => &aws_lc_rs::signature::RSA_PKCS1_SHA256,
      HashTy::Sha384 => &aws_lc_rs::signature::RSA_PKCS1_SHA384,
      HashTy::Sha512 => &aws_lc_rs::signature::RSA_PKCS1_SHA512,
    }
  }

  #[inline]
  #[cfg(feature = "crypto-ring")]
  pub(crate) const fn rsa_pkcs1_enc_ring(self) -> &'static dyn ring::signature::RsaEncoding {
    match self {
      HashTy::Sha256 => &ring::signature::RSA_PKCS1_SHA256,
      HashTy::Sha384 => &ring::signature::RSA_PKCS1_SHA384,
      HashTy::Sha512 => &ring::signature::RSA_PKCS1_SHA512,
    }
  }

  #[inline]
  #[cfg(feature = "crypto-alr")]
  pub(crate) const fn rsa_pkcs1_params_alr(self) -> &'static aws_lc_rs::signature::RsaParameters {
    match self {
      HashTy::Sha256 => &aws_lc_rs::signature::RSA_PKCS1_2048_8192_SHA256,
      HashTy::Sha384 => &aws_lc_rs::signature::RSA_PKCS1_2048_8192_SHA384,
      HashTy::Sha512 => &aws_lc_rs::signature::RSA_PKCS1_2048_8192_SHA512,
    }
  }

  #[inline]
  #[cfg(feature = "crypto-ring")]
  pub(crate) const fn rsa_pkcs1_params_ring(self) -> &'static ring::signature::RsaParameters {
    match self {
      HashTy::Sha256 => &ring::signature::RSA_PKCS1_2048_8192_SHA256,
      HashTy::Sha384 => &ring::signature::RSA_PKCS1_2048_8192_SHA384,
      HashTy::Sha512 => &ring::signature::RSA_PKCS1_2048_8192_SHA512,
    }
  }

  #[inline]
  #[cfg(feature = "crypto-alr")]
  pub(crate) const fn rsa_pss_enc_alr(self) -> &'static aws_lc_rs::signature::RsaSignatureEncoding {
    match self {
      HashTy::Sha256 => &aws_lc_rs::signature::RSA_PSS_SHA256,
      HashTy::Sha384 => &aws_lc_rs::signature::RSA_PSS_SHA384,
      HashTy::Sha512 => &aws_lc_rs::signature::RSA_PSS_SHA512,
    }
  }

  #[inline]
  #[cfg(feature = "crypto-ring")]
  pub(crate) const fn rsa_pss_enc_ring(self) -> &'static dyn ring::signature::RsaEncoding {
    match self {
      HashTy::Sha256 => &ring::signature::RSA_PSS_SHA256,
      HashTy::Sha384 => &ring::signature::RSA_PSS_SHA384,
      HashTy::Sha512 => &ring::signature::RSA_PSS_SHA512,
    }
  }

  #[inline]
  #[cfg(feature = "crypto-alr")]
  pub(crate) const fn rsa_pss_params_alr(self) -> &'static aws_lc_rs::signature::RsaParameters {
    match self {
      HashTy::Sha256 => &aws_lc_rs::signature::RSA_PSS_2048_8192_SHA256,
      HashTy::Sha384 => &aws_lc_rs::signature::RSA_PSS_2048_8192_SHA384,
      HashTy::Sha512 => &aws_lc_rs::signature::RSA_PSS_2048_8192_SHA512,
    }
  }

  #[inline]
  #[cfg(feature = "crypto-ring")]
  pub(crate) const fn rsa_pss_params_ring(self) -> &'static ring::signature::RsaParameters {
    match self {
      HashTy::Sha256 => &ring::signature::RSA_PSS_2048_8192_SHA256,
      HashTy::Sha384 => &ring::signature::RSA_PSS_2048_8192_SHA384,
      HashTy::Sha512 => &ring::signature::RSA_PSS_2048_8192_SHA512,
    }
  }
}