What is Signature Algorithm, Public Key and Modulus in SSL public certificate?

Hello, I would like to know what is Signature Algorithm, Public Key and Modulus in SSL public certificate? Kindly point me to some online resource to understand it better. Thanks!
beer9Asked:
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Dave_DietzConnect With a Mentor Commented:
Signature Algorithm specifies the actual encryption method used to encrypt the signature portion of the certificate.

The other two parts are the actual Public key for the certificate to be used for encryption and decryption.

The Public key consists of the modulus and the public (or encryption) exponent.  These two pieces are used to encrypt data that can only be decrypted using the private key or to decrypt data encrypted usign the Private key.

Dave Dietz
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beer9Author Commented:
Thank you! :-)
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