| Number | Base of difference | MD5 | SHA1 |
| 1 | Length Supported | When we say about the MD5 it supports the message digest length as 128 bits. | When we say about the SHA1 it supports the message digest length as 160 bits. |
| 2 | Security | When we say about the security the algorithm is less secure as compared to sha1. | When we say about the SHA1 its algorithm is more secure as compared to md5. |
| 3 | Complexity | When we say about the complexity MD5 is less complex then the SHA1. | When we say about the complexity of SHA1 it is more complex then MD5. |
| 4 | Speed | When we say about the speed about the MD5 it faster when we compare this with SHA1. | On the other hand when we say about the speed in SHA1 it is slower as compared to the MD5. |
| 5 | Year of invention | When we say about the MD5 it was first invented in year of 1992. | When we say about the SHA1 year of invention it is 1995. |
| 6 | Algorithms Type | Md5 is a hashing algorithm. | Sha1 is also a hashing algorithm. |
| 7 | Full Abbreviation | When we say about the Md5 it stands as message digest algorithm. | When we say about the SHA1 it stands as secure hash algorithm. |
| 8 | Two message finding | MD5 will require 2^64 operations. | SHA1 will require 2^80 operations. |
| 9 | Original message discerning | MD5 will require 2^128 operations. | SHA1 will require 2^160 operations. |
| 10 | Crack code | If anyone was seeking two messages with identical digest, then they are performing 2^64 operations. | If anyone was seeking two messages with identical digest, then they are performing 2^80 operations.
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