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iv_len=

        # OpenSSL::Cipher.iv_len=

(from ruby core)
### Implementation from Cipher
---
    cipher.iv_len = integer -> integer

---

Sets the IV/nonce length of the Cipher. Normally block ciphers don't
allow changing the IV length, but some make use of IV for 'nonce'. You
may need this for interoperability with other applications.



      

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