Sram-based true random number generator

A method, comprising:

• reading respective initial logic states of a first plurality of bits of a memory bit array;
• reading respective initial logic states of a second plurality of bits of the memory bit array, wherein at least one of the first and second pluralities of bits include at least one unstable bit;
• and
• using the initial logic state of the at least one unstable bit to alter at least one of the initial logic states of the second plurality of bits so as to provide at least one random bit.

A method, comprising:

• reading initial logic states of a first bit and a second bit of a memory bit array;
• performing a first logic function on the initial logic state of the first bit;
• and
• performing a second logic function on the initial logic states of the first and second bits to contaminate the initial logic state of the second bit so as to provide an altered initial logic state of the second bit, wherein the altered initial logic state of the second bit forms a first random bit.