Encryption Analysis of Crypted Text

I have a piece of crypted text and the corresponding source text. My goal is to identify the encryption method used for this text.

Requirements:
- Analyze the crypted text and source text
- Determine the type of encryption used
- Provide a detailed report on the findings

Ideal Skills:
- Proficient in cryptography and encryption analysis
- Experienced in data analysis and pattern recognition
- Excellent report writing skills

Please note, I do not have any clues about the encryption method used, nor is the source text in a specific format. It is plain text.