libp2p/crypto/crypto

    Dark Mode
Search:
Group by:
  Source   Edit

This module implements Public Key and Private Key interface for libp2p.Serialization/Deserialization helpers

Types

CryptoError = enum
  KeyError, SigError, HashError, SchemeError
  Source   Edit 
CryptoResult[T] = Result[T, CryptoError]
  Source   Edit 
DigestSheme = enum
  Sha256, Sha512
  Source   Edit 
KeyPair = object
  seckey*: PrivateKey
  pubkey*: PublicKey
  Source   Edit 
PKScheme = enum
  RSA = 0, Ed25519, Secp256k1, ECDSA
  Source   Edit 
PrivateKey = object
  case scheme*: PKScheme
  of PKScheme.RSA:
      when supported(PKScheme.RSA):
          rsakey*: rsa.RsaPrivateKey

      else:
          nil

    
  of PKScheme.Ed25519:
      when supported(PKScheme.Ed25519):
          edkey*: EdPrivateKey

      else:
          nil

    
  of PKScheme.Secp256k1:
      when supported(PKScheme.Secp256k1):
          skkey*: SkPrivateKey

      else:
          nil

    
  of PKScheme.ECDSA:
      when supported(PKScheme.ECDSA):
          eckey*: ecnist.EcPrivateKey

      else:
          nil
  Source   Edit 
PublicKey = object
  case scheme*: PKScheme
  of PKScheme.RSA:
      when PKScheme.RSA in SupportedSchemes:
          rsakey*: rsa.RsaPublicKey

      else:
          nil

    
  of PKScheme.Ed25519:
      when supported(PKScheme.Ed25519):
          edkey*: EdPublicKey

      else:
          nil

    
  of PKScheme.Secp256k1:
      when supported(PKScheme.Secp256k1):
          skkey*: SkPublicKey

      else:
          nil

    
  of PKScheme.ECDSA:
      when supported(PKScheme.ECDSA):
          eckey*: ecnist.EcPublicKey

      else:
          nil
  Source   Edit 
Secret = object
  ivsize*: int
  keysize*: int
  macsize*: int
  data*: seq[byte]
  Source   Edit 
Signature = object
  data*: seq[byte]
  Source   Edit

Consts

libp2p_pki_schemes = "rsa,ed25519,secp256k1,ecnist"
  Source   Edit 
RsaDefaultKeySize = 3072
  Source   Edit 
SupportedSchemes = {RSA, Ed25519, Secp256k1, ECDSA}
  Source   Edit 
SupportedSchemesInt = {0, 1, 2, 3}
  Source   Edit

Procs

proc `$`(key: PrivateKey | PublicKey): string {....raises: [].}
Get string representation of private/public key key.   Source   Edit 
proc `$`(sig: Signature): string {....raises: [], tags: [].}
Get string representation of signature sig.   Source   Edit 
proc `==`(key1, key2: PrivateKey): bool {....raises: [], tags: [].}
Return true if two private keys key1 and key2 of the same scheme and equal.   Source   Edit 
proc `==`(key1, key2: PublicKey): bool {.inline, ...raises: [], tags: [].}
Return true if two public keys key1 and key2 of the same scheme and equal.   Source   Edit 
proc getBytes(key: PrivateKey): CryptoResult[seq[byte]] {....raises: [], tags: [].}
Return private key key in binary form (using libp2p's protobuf serialization).   Source   Edit 
proc getBytes(key: PublicKey): CryptoResult[seq[byte]] {....raises: [], tags: [].}
Return public key key in binary form (using libp2p's protobuf serialization).   Source   Edit 
proc getBytes(sig: Signature): seq[byte] {....raises: [], tags: [].}
Return signature sig in binary form.   Source   Edit 
proc getField(pb: ProtoBuffer; field: int; value: var Signature): ProtoResult[
    bool] {....raises: [], tags: [].}

Deserialize signature from protobuf's message pb using field index field.

On success deserialized signature will be stored in value.

  Source   Edit 
proc getField[T: PublicKey | PrivateKey](pb: ProtoBuffer; field: int;
    value: var T): ProtoResult[bool] {....raises: [].}

Deserialize public/private key from protobuf's message pb using field index field.

On success deserialized key will be stored in value.

  Source   Edit 
proc getOrder(remotePubkey, localNonce: openArray[byte];
              localPubkey, remoteNonce: openArray[byte]): CryptoResult[int] {.
    ...raises: [], tags: [].}
Compare values and calculate order parameter.   Source   Edit 
proc getPublicKey(key: PrivateKey): CryptoResult[PublicKey] {....raises: [],
    tags: [].}
Get public key from corresponding private key key.   Source   Edit 
proc getRawBytes(key: PrivateKey | PublicKey): CryptoResult[seq[byte]] {.
    ...raises: [].}
Return private key key in binary form (using scheme's own serialization).   Source   Edit 
proc init(key: var PrivateKey; data: openArray[byte]): bool {....raises: [],
    tags: [RootEffect].}
  Source   Edit 
proc init(key: var PublicKey; data: openArray[byte]): bool {....raises: [],
    tags: [RootEffect].}
  Source   Edit 
proc init(sig: var Signature; data: openArray[byte]): bool {....raises: [],
    tags: [].}

Initialize signature sig from raw binary form.

Returns true on success.

  Source   Edit 
proc init(sig: var Signature; data: string): bool {....raises: [], tags: [].}

Initialize signature sig from serialized hexadecimal string representation.

Returns true on success.

  Source   Edit 
proc init(t: typedesc[PrivateKey]; data: openArray[byte]): CryptoResult[
    PrivateKey] {....raises: [].}
Create new private key from libp2p's protobuf serialized binary form.   Source   Edit 
proc init(t: typedesc[PrivateKey]; data: string): CryptoResult[PrivateKey] {.
    ...raises: [].}
Create new private key from libp2p's protobuf serialized hexadecimal string form.   Source   Edit 
proc init(t: typedesc[PrivateKey]; key: ecnist.EcPrivateKey): PrivateKey {.
    ...raises: [].}
  Source   Edit 
proc init(t: typedesc[PrivateKey]; key: EdPrivateKey): PrivateKey {....raises: [].}
  Source   Edit 
proc init(t: typedesc[PrivateKey]; key: rsa.RsaPrivateKey): PrivateKey {.
    ...raises: [].}
  Source   Edit 
proc init(t: typedesc[PrivateKey]; key: SkPrivateKey): PrivateKey {....raises: [].}
  Source   Edit 
proc init(t: typedesc[PublicKey]; data: openArray[byte]): CryptoResult[PublicKey] {.
    ...raises: [].}
Create new public key from libp2p's protobuf serialized binary form.   Source   Edit 
proc init(t: typedesc[PublicKey]; data: string): CryptoResult[PublicKey] {.
    ...raises: [].}
Create new public key from libp2p's protobuf serialized hexadecimal string form.   Source   Edit 
proc init(t: typedesc[PublicKey]; key: ecnist.EcPublicKey): PublicKey {.
    ...raises: [].}
  Source   Edit 
proc init(t: typedesc[PublicKey]; key: EdPublicKey): PublicKey {....raises: [].}
  Source   Edit 
proc init(t: typedesc[PublicKey]; key: rsa.RsaPublicKey): PublicKey {....raises: [].}
  Source   Edit 
proc init(t: typedesc[PublicKey]; key: SkPublicKey): PublicKey {....raises: [].}
  Source   Edit 
proc init(t: typedesc[Signature]; data: openArray[byte]): CryptoResult[Signature] {.
    ...raises: [].}
Create new public key from libp2p's protobuf serialized binary form.   Source   Edit 
proc init(t: typedesc[Signature]; data: string): CryptoResult[Signature] {.
    ...raises: [].}
Create new signature from serialized hexadecimal string form.   Source   Edit 
proc init[T: PrivateKey | PublicKey](key: var T; data: string): bool {.
    ...raises: [].}

Initialize private/public key key from libp2p's protobuf serialized hexadecimal string representation.

Returns true on success.

  Source   Edit 
proc iv(secret: Secret; id: int): seq[byte] {.inline, ...raises: [], tags: [].}
Get array of bytes with with initial vector.   Source   Edit 
proc key(secret: Secret; id: int): seq[byte] {.inline, ...raises: [], tags: [].}
  Source   Edit 
proc mac(secret: Secret; id: int): seq[byte] {.inline, ...raises: [], tags: [].}
  Source   Edit 
proc newRng(): ref HmacDrbgContext {....raises: [], tags: [RootEffect].}
  Source   Edit 
proc random(T: typedesc[KeyPair]; rng: var HmacDrbgContext;
            bits = RsaDefaultKeySize): CryptoResult[KeyPair] {....raises: [].}

Generate random private pair of keys using default public-key cryptography scheme.

Default public-key cryptography schemes are following order: ed25519, secp256k1, RSA, secp256r1.

So will be used first available (supported) method.

  Source   Edit 
proc random(T: typedesc[KeyPair]; scheme: PKScheme; rng: var HmacDrbgContext;
            bits = RsaDefaultKeySize): CryptoResult[KeyPair] {....raises: [].}

Generate random key pair for scheme scheme.

bits is number of bits for RSA key, bits value must be in [512, 4096], default value is 2048 bits.

  Source   Edit 
proc random(T: typedesc[PrivateKey]; rng: var HmacDrbgContext;
            bits = RsaDefaultKeySize): CryptoResult[PrivateKey] {....raises: [].}

Generate random private key using default public-key cryptography scheme.

Default public-key cryptography schemes are following order: ed25519, secp256k1, RSA, secp256r1.

So will be used first available (supported) method.

  Source   Edit 
proc random(T: typedesc[PrivateKey]; scheme: PKScheme; rng: var HmacDrbgContext;
            bits = RsaDefaultKeySize): CryptoResult[PrivateKey] {....raises: [].}

Generate random private key for scheme scheme.

bits is number of bits for RSA key, bits value must be in [2048, 4096], default value is 3072 bits.

  Source   Edit 
proc selectBest(order: int; p1, p2: string): string {....raises: [], tags: [].}

Determines which algorithm to use from list p1 and p2.

Returns empty string if there no algorithms in common.

  Source   Edit 
func shortLog(key: PrivateKey | PublicKey): string {....raises: [].}
Get short string representation of private/public key key.   Source   Edit 
proc shuffle[T](rng: ref HmacDrbgContext; x: var openArray[T]) {....raises: [].}
  Source   Edit 
proc sign(key: PrivateKey; data: openArray[byte]): CryptoResult[Signature] {.
    ...gcsafe, raises: [], tags: [RootEffect].}
Sign message data using private key key and return generated signature in raw binary form.   Source   Edit 
proc stretchKeys(cipherType: string; hashType: string; sharedSecret: seq[byte]): Secret {.
    ...raises: [], tags: [].}
Expand shared secret to cryptographic keys.   Source   Edit 
proc toBytes(key: PrivateKey; data: var openArray[byte]): CryptoResult[int] {.
    ...raises: [], tags: [].}

Serialize private key key (using libp2p protobuf scheme) and store it to data.

Returns number of bytes (octets) needed to store private key key.

  Source   Edit 
proc toBytes(key: PublicKey; data: var openArray[byte]): CryptoResult[int] {.
    ...raises: [], tags: [].}

Serialize public key key (using libp2p protobuf scheme) and store it to data.

Returns number of bytes (octets) needed to store public key key.

  Source   Edit 
proc toBytes(sig: Signature; data: var openArray[byte]): int {....raises: [],
    tags: [].}

Serialize signature sig and store it to data.

Returns number of bytes (octets) needed to store signature sig.

  Source   Edit 
proc toRawBytes(key: PrivateKey | PublicKey; data: var openArray[byte]): CryptoResult[
    int] {....raises: [].}

Serialize private key key (using scheme's own serialization) and store it to data.

Returns number of bytes (octets) needed to store private key key.

  Source   Edit 
proc verify(sig: Signature; message: openArray[byte]; key: PublicKey): bool {.
    ...raises: [], tags: [RootEffect].}
Verify signature sig using message message and public key key. Return true if message signature is valid.   Source   Edit 
proc write(pb: var ProtoBuffer; field: int; sig: Signature) {.inline,
    ...raises: [], raises: [], tags: [].}
  Source   Edit 
proc write(vb: var VBuffer; pubkey: PublicKey) {.inline,
    ...raises: [ResultError[CryptoError]], raises: [], tags: [].}
Write PublicKey value pubkey to buffer vb.   Source   Edit 
proc write(vb: var VBuffer; seckey: PrivateKey) {.inline,
    ...raises: [ResultError[CryptoError]], raises: [], tags: [].}
Write PrivateKey value seckey to buffer vb.   Source   Edit 
proc write(vb: var VBuffer; sig: PrivateKey) {.inline,
    ...raises: [ResultError[CryptoError]], raises: [], tags: [].}
Write Signature value sig to buffer vb.   Source   Edit 
proc write[T: PublicKey | PrivateKey](pb: var ProtoBuffer; field: int; key: T) {.
    inline, ...raises: [ResultError[CryptoError]], raises: [].}
  Source   Edit

Templates

template goffset(secret, id, o: untyped): untyped
  Source   Edit 
template ivOpenArray(secret: Secret; id: int): untyped
  Source   Edit 
template keyOpenArray(secret: Secret; id: int): untyped
  Source   Edit 
template macOpenArray(secret: Secret; id: int): untyped
  Source   Edit 
template orError(exp: untyped; err: untyped): untyped
  Source   Edit 
template supported(scheme: PKScheme): bool
Returns true if specified scheme is currently available.   Source   Edit

Made with Nim. Generated: 2024-11-09 03:53:05 UTC