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Given that Elliptical Curve Cryptography (ECC) is supposed to be more efficient (smaller key required for equal protection) than other cryptography methods, why is it not more widely used?<br />
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I'm studying for my Security+ Cert and constantly see that ECC can use a much smaller key yet still afford the same/similar level of security.
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Given that Elliptical Curve Cryptography (ECC) is supposed to be more efficient (smaller key required for equal protection) than other cryptography methods, why is it not more widely used?

I'm studying for my Security+ Cert and constantly see that ECC can use a much smaller key yet still afford the same/similar level of security.

ECC algorithm vs others.

Encryption is the process of encoding messages or information in such a way that only authorized parties can read it. In an encryption scheme, the intended communication information or message, referred to as plaintext, is encrypted using an encryption algorithm, generating ciphertext that can only be read if decrypted. For technical reasons, an encryption scheme usually uses a pseudo-random encryption key generated by an algorithm. An authorized recipient can easily decrypt the message with the key provided by the originator to recipients, but not to unauthorized interceptors.