Skip to content
master
Switch branches/tags
Code

Latest commit

 

Git stats

Files

Permalink
Failed to load latest commit information.
Type
Name
Latest commit message
Commit time
 
 
r3
 
 
rq
 
 
 
 
zx
 
 
 
 
 
 
 
 
 
 
 
 
 
 

sntrup4591761

Build Status ISC License GoDoc

Streamlined NTRU Prime 4591^761

sntrup4591761 is a Go library implementing the Streamlined NTRU Prime 4591761 cryptosystem. Most of the code consists of a port of the reference C implementation.

Constants

  • PublicKeySize

The size of an encoded public key.

  • PrivateKeySize

The size of an encoded private key.

  • CiphertextSize

The size of a ciphertext encapsulating a shared key.

  • SharedKeySize

The size of a shared key.

Functions

  • GenerateKey(s io.Reader) (*[PublicKeySize]byte, *[PrivateKeySize]byte, error)

GenerateKey returns a new a public/private key pair with randomness from s. GenerateKey will fail if randomness cannot be obtained from s.

  • Encapsulate(s io.Reader, publicKey *[PublicKeySize]byte) (*[CiphertextSize]byte, *[SharedKeySize]byte, error)

Encapsulate generates a random shared key and encrypts it with the given public key. The shared key and its corresponding ciphertext are returned. Encapsulate will fail if randomness cannot be obtained from s.

  • Decapsulate(ciphertext *[CiphertextSize]byte, privateKey *[PrivateKeySize]byte) (*[SharedKeySize]byte, int)

Decapsulate uses a private key to decrypt a ciphertext, returning an encapsulated shared key. Decapsulate will return zero if the ciphertext is invalid.

Examples

The library is accompanied by three small standalone applications demonstrating its use: keygen, encap, and decap. A test script is provided to exercise these applications comprehensively.

To build the bundled applications, ensure that the repository lies in your GOPATH and run make. Once built, the auxiliary test script can be triggered by invoking ./test.

Sage tests

A set of 128 different instances of NTRU Prime were simulated in Sage and their data compiled in testdata/sage128.gz. The TestSage Go test contrasts the results obtained by the library with those from the Sage implementation. Please note that this test can take seconds to complete.

Running the tests

To run the Sage tests and other tests, ensure that the repository lies in your GOPATH and run go test -v.

License

sntrup4591761 is licensed under the copyfree ISC License.

About

Streamlined NTRU Prime 4591^761 in Go

Topics

Resources

License

Releases

No releases published

Packages

No packages published