cognito

package

v0.0.0-...-947a02f Latest Latest Go to latest Published: Mar 4, 2024 License: BSD-3-Clause Imports: 5 Imported by: 0

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Package cognito contains the SRP primitives that differ between RFC 5054 and the AWS Cognito implementation.

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func ComputeU(s *srp.SRP, xA, xB *big.Int) *big.Int

ComputeU calculates the SRP hash of both public A and B values according to the AWS Cognito implementation.

func ComputeX(s *srp.SRP, identity, password, salt []byte) *big.Int

ComputeX calculates the SRP hash of the identity/username, password according to the AWS Cognito implementation.

func GetGroup(n int) (*srp.Group, error)

GetGroup returns the AWS Cognito group for the prime of n bits.

func Multiplier(s *srp.SRP) *big.Int

Multiplier calculates the SRP multiplier K according to the AWS Cognito implementation.

func NewSRP() (*srp.SRP, error)

NewSRP returns a new srp.SRP struct with the Cognito-specific options already set.

func Pad(b []byte) []byte

Pad prepends a zero byte to slice b if the first byte is greater than or equal to 0x80.

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