They are probably the most basic types of ciphers, which made them not very reliable, especially after new technology came about--modern schemes use computers or other digital technology, and operate on bits and bytes.
Modern schemes use computers or other digital technology, and operate on bits and bytes. They are probably the most basic types of ciphers, which made them not very reliable, especially after new technology was developed.
They are probably the most basic types of ciphers, which made them not very reliable, especially after new technology was developed. Modern schemes use computers or other digital technology, and operate on bits and bytes.
They are probably the most basic types of ciphers, which made them not very reliable, especially after new technology was developed. Modern schemes use computers or other digital technology, and operate on bits and bytes.