Digital Signatures and Public Key Encryption

"Digital Signatures and Public Key Encryption" Please respond to the following:

• Suggest two (2) types of organizations that would benefit from using digital signatures. Determine two (2) types of organizations that should not use digital signatures and add them to your post. Provide a rationale for each one of your responses. Use Internet references published within the past [1] year.
• Imagine that you are the Chief Technology Officer (CTO) of a national banking organization, and it is your responsibility to decide whether or not the organization should be using public-key encryption instead of any other type of encryption. Recommend the type of encryption that the organization should use. Provide a rationale for your response. Use Internet references published within the past [1] year.