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- def __init__(self, data=None, truncate_to=None):
- """ SHA-265d against length-extensions-attacks
- with optional truncation of the hash
- Args:
- data: Initial string, optional
- truncate_to: length to truncate the hash to, optional
- """
- self.h = sha256()
- self.truncate_to = truncate_to
- if data:
- self.h.update(data)
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