Update readme.md
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@ -90,7 +90,7 @@ void ed25519_add_scalar(unsigned char *public_key, unsigned char *private_key,
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Adds `scalar` to the given key pair where scalar is a 32 byte buffer (possibly
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generated with `ed25519_create_seed`), generating a new key pair. You can
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calculate the public key sum without knowing the private key and vice versa by
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passing in NULL for the key you don't know. This is useful for enforcing
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passing in `NULL` for the key you don't know. This is useful for enforcing
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randomness on a key pair while only knowing the public key, among other things.
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Warning: the last bit of the scalar is ignored - if comparing scalars make sure
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to clear it with `scalar[31] &= 127`.
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