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Remove Buffer dependency #1

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Remove Buffer dependency #1

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10 changes: 5 additions & 5 deletions index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -14,9 +14,9 @@ function keygen (key) {
}

function encrypt (plaintext, key, ciphertext) {
assert(Buffer.isBuffer(plaintext))
assert(plaintext instanceof Uint8Array)
var clen = encryptLength(plaintext)
if (ciphertext == null) ciphertext = Buffer.alloc(clen)
if (ciphertext == null) ciphertext = new Uint8Array(clen)
assert(key.byteLength === KEYBYTES, 'key must be KEYBYTES long')
assert(ciphertext.byteLength === clen, 'ciphertext must be plaintext + HEADERBYTES long')

Expand All @@ -34,12 +34,12 @@ function encrypt (plaintext, key, ciphertext) {
}

function encryptLength (plaintext) {
assert(Buffer.isBuffer(plaintext))
assert(plaintext instanceof Uint8Array)
return plaintext.byteLength + HEADERBYTES
}

function decrypt (ciphertext, key, plaintext) {
assert(Buffer.isBuffer(ciphertext))
assert(ciphertext instanceof Uint8Array)
var plen = decryptLength(ciphertext)
if (plaintext == null) plaintext = sodium.sodium_malloc(plen)
assert(key.byteLength === KEYBYTES, 'key must be KEYBYTES long')
Expand All @@ -54,7 +54,7 @@ function decrypt (ciphertext, key, plaintext) {
}

function decryptLength (ciphertext) {
assert(Buffer.isBuffer(ciphertext))
assert(ciphertext instanceof Uint8Array)
return ciphertext.byteLength - HEADERBYTES
}

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