Encryption Challenge 1
Description: Binary.
Difficulty: Easy

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Encryption Challenge 3
Description: Addition and Subtraction.
Difficulty: unknown 

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Encryption Challenge 4
Description: Based of a number system
Difficulty: unknown 

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Encryption Challenge 5
Description: Decode this with the key: +8, +4, -1
Difficulty: unknown 

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Encryption Challenge 6
Description: Math
Difficulty: unknown 

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Encryption Challenge 7
Description: MD encryption
Difficulty: Medium 

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Encryption Challenge 8
Description: Based on a number system. The encryption uses addition and subtraction.
Difficulty: Hard 

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Encryption Challenge 9
Description: Mobile phone technology could help with this.
Difficulty: Medium 

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Encryption Challenge 10
Description: Maybe there's more than one encryption to break.
Difficulty: Medium 

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Encryption Challenge 11
Description: One-Time-Pad
Difficulty: Hard 

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