class Poseidon

• Poseidon
• Reference
• Object

Defined in:

poseidon.cr

Constructors

• .new(prime : BigInt, security, width = 0, capacity = -1)

  field prime number, desired security bits, t (permutation width)

Class Method Summary

• .bytes_to_field(data : Array(UInt8))
• .field_to_bytes(b)
• .new_horizen

  Returns a poseidon object with (current) Horizen parameters

Instance Method Summary

• #absorb(chunks, params)
• #auto_parameters(security = 128)
• #compute_capacity(security, strict = false)

  compute the capacity in order to achieve the desired security WARNING - we allow for a 5% tolerance, use strict=true to ensure desired security

• #field_size

  number of bytes that can fit in a field element

• #hash(data : Array(UInt8), hash_size, params : PoseidonParams)
• #perm(state_words, params : PoseidonParams)
• #preprocess(data : Array(UInt8))

  convert input into arrays of field

• #squeeze(hash_size, params)

  size in bytes

• #to_byte(field_data : Array(BigInt))

  Convert an array of field elements to bytes

• #to_field(data : Array(UInt8), k)

  convert k elements to field

Constructor Detail

Class Method Detail

Instance Method Detail