PGP和S / MIME之间的区别

1.相当好的隐私权(PGP)：
PGP是一个开放源代码软件包，旨在用于电子邮件安全性。菲尔·齐默曼(Phil Zimmerman)开发了它。它提供了密码学的基本或基本需求。在这多个步骤中，我们采取了保护电子邮件安全的措施，这些措施包括：

1. Confidentiality
2. Authentication
3. Compression
4. Resemble
5. Segmentation
6. E-mail compatibility 

2.安全/多用途Internet邮件扩展(S / MIME)：
S / MIME是多用途Internet邮件扩展(MIME)的安全性增强版本。在这种情况下，公钥密码术用于数字签名，加密或解密电子邮件。用户获取具有受信任权限的公钥-私钥对，然后在电子邮件应用程序中适当使用这些密钥。

PGP和S / MIME之间的区别：

S.NO	PGP	S/MIME
1.	It is designed for processing the plain texts	While it is designed to process email as well as many multimedia files.
2.	PGP is less costly as compared to S/MIME.	While S/MIME is comparatively expensive.
3.	PGP is good for personal as well as office use.	While it is good for industrial use.
4.	PGP is less efficient than S/MIME.	While it is more efficient than PGP.
5.	It depends on user key exchange.	Whereas it relies on a hierarchically valid certificate for key exchange.
6.	PGP is comparatively less convenient.	While it is more convenient than PGP due to the secure transformation of all the applications.
7.	PGP contains 4096 public keys.	While it contains only 1024 public keys.
8.	PGP is the standard for strong encryption.	While it is also the standard for strong encryption but has some drawbacks.
9.	PGP is also be used in VPNs.	While it is not used in VPNs, it is only used in email services.
10.	PGP uses Diffie hellman digital signature.	While it uses Elgamal digital signature.