https://github.com/totomanov/sha1-asm

SHA-1 hash function implementation in AT&T syntax x86 Assembly.
https://github.com/totomanov/sha1-asm

Last synced: 21 days ago
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SHA-1 hash function implementation in AT&T syntax x86 Assembly.

• Host: GitHub
• URL: https://github.com/totomanov/sha1-asm
• Owner: totomanov
• Created: 2020-06-19T06:33:21.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2020-06-19T06:55:48.000Z (over 4 years ago)
• Last Synced: 2024-04-14T02:02:40.929Z (7 months ago)
• Language: Assembly
• Size: 3.91 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# sha1-asm

Implementation of the SHA-1 hash function implementation in AT&T syntax x86 Assembly. It works on the 512-bit data chunks directly, 

so the preprocessing and chunking phases of the algorithm are not implemented.

The program was created as a part of the Computer Organisation course at TU Delft.

The [pseudocode from Wikipedia](https://en.wikipedia.org/wiki/SHA-1#Examples_and_pseudocode) was very useful in the development process.

# Running on Linux

1. Clone this repo in a new directory.

```

git clone https://github.com/totomanov/sha1-asm.git

```

2. Assemble the program with GCC.

```

gcc -no-pie -o sha1 sha1.s

```

3. Execute the binary

```

./sha1

```

# Debugging

1. Pass the ```-g``` flag to GCC.

```

gcc -g -no-pie -o sha1 sha1.s

```

2. Start the debugger.

```

gdb ./sha1

```