check public key length in validate()
check public key length in validate()

fimkrypto/nxt,metrospark/czarcraft,Ziftr/nxt,fimkrypto/nxt,Ziftr/nxt,Ziftr/nxt,fimkrypto/nxt,fimkrypto/nxt,metrospark/czarcraft,metrospark/czarcraft