Module btlib::crypto

This module contains types providing the cryptographic primitives necessary to implement Blocktree.

The openssl create is used for all of these primitives, none of them are directly implemented in this module. Rather, the types here wrap the functionality provided by OpenSSL in a more convenient interface, and they serve as an abstraction layer, so that the underlying crypto library can be more easily replaced.

Re-exports

• pub use merkle_stream::MerkleStream;
• pub use secret_stream::SecretStream;

Modules

• file_cred_store
• merkle_stream
• secret_stream
• tpm
• x509
  Code for converting Writecaps to and from the X.509 certificate format. TODO: Improve the efficiency and quality of this code by moving to a different library for handling X.509 certificates.

Structs

• AsymKey
  Represents any kind of asymmetric key.
• AsymKeyPair
• BtHasher
  An implementation of std::hash::Hasher which allows cryptographic hash algorithms to be used.
• Ciphertext
  The encryption of some type T.
• ConcreteCreds
• ConcretePub
• DerivationParams
  Parameters used to derive cryptographic keys from passwords.
• Envelope
  A struct which contains the cipher text for a message along with the ciphertext of the key that was used to encrypt the message. This is useful for encrypting messages that are too long to be encrypted using an asymmetric encryption scheme.
• HashStream
  A wrapper which updates a HashOp when data is read or written.
• OsslHashOp
  A hash operation which uses OpenSSL.
• OsslSignOp
• OsslVerifyOp
• RsaEsOaep
• RsaSsaPss
• Sha2_256
  Represents the SHA2-256 hash algorithm.
• Sha2_512
  Represents the SHA2-512 hash algorithm.
• SignWrite
  A struct which computes a signature over data as it is written to it.
• Signature
  A cryptographic signature.
• SignatureMismatch
  Contains information about why a signature verification failed.
• Signed
  A signature over the serialization of a type T.
• TaggedCiphertext
• VarHashOp
  A HashOp which produces a VarHash.
• VerifyRead

Enums

• AeadKey
• AeadKeyKind
  Auto-generated discriminant enum variants
• BitLen
• Encrypt
• Error
  Errors that can occur during cryptographic operations.
• HashKind
  Auto-generated discriminant enum variants
• Private
  Represents keys which must be kept confidential.
• Public
  Represents keys which can be shared freely.
• SchemeKind
• Sign
• SymKey
• SymKeyKind
  Auto-generated discriminant enum variants
• VarHash
  One of several concrete hash types.
• WritecapAuthzErr
  The types of errors which can occur when verifying a writecap chain is authorized to write to a given path.

Traits

• CredStore
  A trait for types which store credentials.
• CredStoreMut
  An extension of CredStore which exposes additional methods for mutating the credential store.
• Creds
  Trait for types which contain both public and private credentials.
• CredsPriv
  Trait for types which contain private credentials.
• CredsPub
  Trait for types which can be used as public credentials.
• Decrypter
• DecrypterExt
• DefaultHash
  Trait for hash types which can be created with no arguments.
• Encrypter
• EncrypterExt
• Hash
  A cryptographic hash.
• HashOp
  An ongoing hash operation.
• KeyPrivacy
  Marker trait for the Public and Private key privacy types.
• Op
  An ongoing Init-Update-Finish operation.
• Scheme
  A Cryptographic Scheme. This is a common type for operations such as encrypting, decrypting, signing and verifying.
• SignOp
  Represents an ongoing signing operation.
• Signer
• SignerExt
• Verifier
• VerifierExt
• VerifyOp

Functions

• rand_array
  Returns an array of the given length filled with cryptographically strong random data.
• rand_vec
  Returns a vector of the given length with with cryptographically strong random data.

Type Definitions

• AsymKeyPub