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aes nodejs

Restu Wahyu Saputra answered on November 15, 2024 Popularity 1/10 Helpfulness 1/10

answer aes nodejs

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aes nodejs

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import crypto from 'node:crypto'

export class Encryption {
	static AES256Encrypt(secretKey: string, data: string): Buffer {
		const checkValidSecretKey: crypto.KeyObject = crypto.createSecretKey(Buffer.from(secretKey))

		if (!checkValidSecretKey) throw new Error('Secretkey not valid')
		else if (checkValidSecretKey && checkValidSecretKey.symmetricKeySize != 32) throw new Error('Secretkey length miss match')

		const key: Buffer = crypto.scryptSync(secretKey, 'salt', 32, {
			N: 1024,
			r: 8,
			p: 1
		})

		const iv: Buffer = crypto.randomBytes(16)
		const cipher: crypto.CipherGCM = crypto.createCipheriv('aes-256-gcm', key, iv)

		const cipherData: Buffer = Buffer.concat([cipher.update(data), cipher.final()])
		const tag: Buffer = cipher.getAuthTag()

		return Buffer.concat([iv, tag, cipherData])
	}

	static AES256Decrypt(secretKey: string, cipher: Buffer): Buffer {
		const checkValidSecretKey: crypto.KeyObject = crypto.createSecretKey(Buffer.from(secretKey))

		if (!checkValidSecretKey) throw new Error('Secretkey not valid')
		else if (checkValidSecretKey && checkValidSecretKey.symmetricKeySize != 32) throw new Error('Secretkey length miss match')

		const key: Buffer = crypto.scryptSync(secretKey, 'salt', 32, {
			N: 1024,
			r: 8,
			p: 1
		})

		const iv: Buffer = cipher.subarray(0, 16)
		const tag: Buffer = cipher.subarray(16, 32)
		const cipherData: Buffer = cipher.subarray(32)

		const decipher: crypto.DecipherGCM = crypto.createDecipheriv('aes-256-gcm', key, iv)
		decipher.setAuthTag(tag)

		return Buffer.concat([decipher.update(cipherData), decipher.final()])
	}

	static HMACSHA512Sign(secretKey: crypto.BinaryLike | crypto.KeyObject, encoding: crypto.BinaryToTextEncoding, data: string): string {
		const symmetricSignature: crypto.Hmac = crypto.createHmac('SHA512', secretKey)
		symmetricSignature.update(data)
		return symmetricSignature.digest(encoding).toString()
	}

	static HMACSHA512Verify(secretKey: crypto.BinaryLike | crypto.KeyObject, encoding: crypto.BinaryToTextEncoding, data: string, hash: string): boolean {
		const symmetricSignature: crypto.Hmac = crypto.createHmac('SHA512', secretKey)
		symmetricSignature.update(data)
		return Buffer.compare(Buffer.from(symmetricSignature.digest(encoding).toString()), Buffer.from(hash)) == 0 ? true : false
	}
}

Popularity 1/10 Helpfulness 1/10 Language typescript

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Tags: aes typescript

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Contributed on Nov 16 2024

Restu Wahyu Saputra

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Add @EnableWebMvc to configuration class

Popularity 1/10 Helpfulness 1/10 Language java

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Contributed on Nov 15 2024

Ba6taTi

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aes nodejs

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