A mobile message source authentication system that facilitates authentication of mobile messages, the mobile messages being one of: Short Message Service, SMS, compatible messaging, Multimedia Messaging Service, MMS, compatible messaging, Rich Communication Services, RCS, compatible messaging, sourced by corresponding sourcing entities that each have a corresponding entity logo, comprising: an apparatus having: a network interface; a control circuit operably coupled to the network interface and configured to: - receive from a mobile receiver a request for a certificate for a particular sourcing entity in response to receiving at the mobile receiver a mobile message that included an encrypted entity digital signature and an encrypted version of an entity logo that was sourced by the particular sourcing entity; provide a certificate revocation list that is used in a certificate authority validation process provide security for the particular one of the sourcing entities as an authenticated source of the mobile message; - upon a successful certificate authority validation process, transmit to the mobile receiver the certificate, wherein the certificate includes: an entity logo that corresponds to the particular sourcing entity; and decryption information for decrypting the encrypted entity digital signature and the encrypted version of the entity logo; and the certificate comprises a 70 bytes hashed digital signature; wherein the mobile receiver is configured to: - decrypt the unencrypted entity digital signature and the encrypted version of the entity logo to thereby authenticate that the mobile message that included the encrypted entity digital signature was sourced by a particular one of the sourcing entities; and - display the entity logo from the certificate in conjunction with presenting the mobile message to thereby visually confirm the particular one of the sourcing entities as being an authenticated source of the mobile message. a network interface; a control circuit operably coupled to the network interface and configured to: - receive from a mobile receiver a request for a certificate for a particular sourcing entity in response to receiving at the mobile receiver a mobile message that included an encrypted entity digital signature and an encrypted version of an entity logo that was sourced by the particular sourcing entity; provide a certificate revocation list that is used in a certificate authority validation process provide security for the particular one of the sourcing entities as an authenticated source of the mobile message; - upon a successful certificate authority validation process, transmit to the mobile receiver the certificate, wherein the certificate includes: an entity logo that corresponds to the particular sourcing entity; and decryption information for decrypting the encrypted entity digital signature and the encrypted version of the entity logo; - receive from a mobile receiver a request for a certificate for a particular sourcing entity in response to receiving at the mobile receiver a mobile message that included an encrypted entity digital signature and an encrypted version of an entity logo that was sourced by the particular sourcing entity; provide a certificate revocation list that is used in a certificate authority validation process provide security for the particular one of the sourcing entities as an authenticated source of the mobile message; - upon a successful certificate authority validation process, transmit to the mobile receiver the certificate, wherein the certificate includes: an entity logo that corresponds to the particular sourcing entity; and decryption information for decrypting the encrypted entity digital signature and the encrypted version of the entity logo; an entity logo that corresponds to the particular sourcing entity; and decryption information for decrypting the encrypted entity digital signature and the encrypted version of the entity logo; and the certificate comprises a 70 bytes hashed digital signature; wherein the mobile receiver is configured to: - decrypt the unencrypted entity digital signature and the encrypted version of the entity logo to thereby authenticate that the mobile message that included the encrypted entity digital signature was sourced by a particular one of the sourcing entities; and - display the entity logo from the certificate in conjunction with presenting the mobile message to thereby visually confirm the particular one of the sourcing entities as being an authenticated source of the mobile message. - decrypt the unencrypted entity digital signature and the encrypted version of the entity logo to thereby authenticate that the mobile message that included the encrypted entity digital signature was sourced by a particular one of the sourcing entities; and - display the entity logo from the certificate in conjunction with presenting the mobile message to thereby visually confirm the particular one of the sourcing entities as being an authenticated source of the mobile message.