Janady13/missionmatch / internal/platform/security/aesgcm.go

Source identity

Field	Recorded value
Source type	GitHub source
Original record	Janady13/missionmatch / internal/platform/security/aesgcm.go
Date	Not specified in source
Repository	Janady13/missionmatch
Revision	720d47fae476b0d38477ae4401697d372b1ea2bc
Branch	feature/opportunity-to-outcome
Path or archive member	internal/platform/security/aesgcm.go
Original SHA-256	9ea052d1defa5802bebb6154b1a4314263bf139d3b6c84ec8de11b71e713b3fa
Git blob SHA	fbff00d89c54e5201b5b3aee9150658245ba7a80
Reading-copy SHA-256	9ea052d1defa5802bebb6154b1a4314263bf139d3b6c84ec8de11b71e713b3fa

Original source ↗

Every recorded occurrence

These 36 records contain identical original source bytes. Their paths and revisions remain part of the archive.

Original record	Branch or archive	Revision / identifier	Original location
Janady13/missionmatch / internal/platform/security/aesgcm.go	feature/opportunity-to-outcome	720d47fae476b0d38477ae4401697d372b1ea2bc	Open original
Janady13/missionmatch / internal/platform/security/aesgcm.go	per-tenant-routing	9bde0f9a74b89d01980fa658e5253acda7528d0c	Open original
Janady13/missionmatch / internal/platform/security/aesgcm.go	collision-deconfliction	4ee5a09972608ed89f8377c6665542d5f450f0a6	Open original
Janady13/missionmatch / internal/platform/security/aesgcm.go	ws6-retrieval	6c56e29231ec05735927fa265c97d517499dfeaf	Open original
Janady13/missionmatch / internal/platform/security/aesgcm.go	workstream-a-shared-core	e0de03ac3a1ec826bd15d0e048e3b02baa23eeff	Open original
Janady13/missionmatch / internal/platform/security/aesgcm.go	m5-price-to-win	41000ad30fff4129fdaf5ec84e15ba14c27d4890	Open original
Janady13/missionmatch / internal/platform/security/aesgcm.go	workstream-c-slatematch	5cd60c918301b46ecd6ed3e03e20c395da0062e2	Open original
Janady13/missionmatch / internal/platform/security/aesgcm.go	ws1-ontology-sync	b596f449a32a1016fbd403c36505cc00a1ac9ee6	Open original
Janady13/missionmatch / internal/platform/security/aesgcm.go	master	1e9249840a4302ec82e123b9c9cb6f75badea3e4	Open original
Janady13/missionmatch / internal/platform/security/aesgcm.go	ws8-teaching-loop	c823f0fb6bb2aba0f39001eb6de96f4000d9321f	Open original
Janady13/missionmatch / internal/platform/security/aesgcm.go	w3-ai-staffing-recommendations	43d56387270ef4da4cabd794d97ca6a49909bc7d	Open original
Janady13/missionmatch / internal/platform/security/aesgcm.go	mag-substrate	b82c7100a492dec67dfd1eda6b3f53def859be35	Open original
Janady13/missionmatch / internal/platform/security/aesgcm.go	ws3-clearance	4b8e7ce594c068621867f9c9deed0ec64ae6c553	Open original
Janady13/missionmatch / internal/platform/security/aesgcm.go	workstream-d-command-center	255e7d1d420abf5e277d0cd8c9b14f6f72b6acb9	Open original
Janady13/missionmatch / internal/platform/security/aesgcm.go	phase2-eval-fairness	d361af254701975fe239927656ababb56374655e	Open original
Janady13/missionmatch / internal/platform/security/aesgcm.go	workstream-e-dataflow-deploy	433815a042f9741411e60fa553fe72143e9b10db	Open original
Janady13/missionmatch / internal/platform/security/aesgcm.go	ruthless-debug-sweep	b7d742f8f032984be3817efffa3eb8b13b651c1f	Open original
Janady13/missionmatch / internal/platform/security/aesgcm.go	time-to-fill-survival	b66e1e505863d4f17741a4b9ede73509e45bd6c6	Open original
Janady13/missionmatch / internal/platform/security/aesgcm.go	ai-intelligence-layer	5d5ddff70393a197c5f54a45280bb5dd42b24755	Open original
Janady13/missionmatch / internal/platform/security/aesgcm.go	graphrag-foundation	b0ddeb9f633fd138d09309d1a17b7d13bc3a67f7	Open original
Janady13/missionmatch / internal/platform/security/aesgcm.go	workstream-a-opportunity-intelligence	1675031db74316e100782d063e9eda1a597fe3a1	Open original
Janady13/missionmatch / internal/platform/security/aesgcm.go	deploy-and-ops	bdacd9d0b4d5998d25fc74bf4007f4c3ec538c7a	Open original
Janady13/missionmatch / internal/platform/security/aesgcm.go	ws9-bench-ingestion	f585a9ef32fa554663ce1fba9a414a54b6e49cf0	Open original
Janady13/missionmatch / internal/platform/security/aesgcm.go	ws2-alias-relationship	e4dada4601c6eb101830f9d223a9655dfa120616	Open original
Janady13/missionmatch / internal/platform/security/aesgcm.go	presentation-readiness	eb574acaa29d71ce4d0f852572e87c275c79fdb7	Open original
Janady13/missionmatch / internal/platform/security/aesgcm.go	vendor-intelligence	fe9796a19c261951d3f2565206c0c1b5ac294465	Open original
Janady13/missionmatch / internal/platform/security/aesgcm.go	workstream-b-screenmatch	09015496d565a172bcaa15cfe9a8e4b072b13df0	Open original
Janady13/missionmatch / internal/platform/security/aesgcm.go	ws7-federal-signal	6a9f6ce9cfb13345ffb47770d4960e7c2d9c17c2	Open original
Janady13/missionmatch / internal/platform/security/aesgcm.go	workstream-e-commercial-stubs	4437da660539284a400ee380b9b427a300c369ee	Open original
Janady13/missionmatch / internal/platform/security/aesgcm.go	ai-brain-live	aac32fc49c878cc5bca099459307611562d0bac1	Open original
Janady13/missionmatch / internal/platform/security/aesgcm.go	workstream-d-missionmatch	3be46ba89edb737182075a2b320509b42dc916f8	Open original
Janady13/missionmatch / internal/platform/security/aesgcm.go	phase2-connectors	e038d4c687aec16f8bd9bc4d907eea14d91f8704	Open original
Janady13/missionmatch / internal/platform/security/aesgcm.go	workstream-b-sam-contract-awards	d5101cceb98e70000cebb31d3e7ac73d747d3a6d	Open original
Janady13/missionmatch / internal/platform/security/aesgcm.go	w0-aedt-compliance	39df94f92b2a33f852481fe1954dabed841524bb	Open original
Janady13/missionmatch / internal/platform/security/aesgcm.go	feature/aioe-upgrade	2178e7298d0e5d9af83afa12402fd587f0ba6ed8	Open original
Janady13/missionmatch / internal/platform/security/aesgcm.go	capture-readiness	bae6af7cb2997e819174a9e9cfff5e16067a1975	Open original

Recovered source transcript

Download complete source text ↓56 lines · 1.6 KB

package security

import (
	"crypto/aes"
	"crypto/cipher"
	"crypto/rand"
	"errors"
	"fmt"
)

// AESKeySize is the required key length for AES 256.
const AESKeySize = 32

// SealSecret encrypts plaintext with AES 256 GCM under key, returning the ciphertext and the random
// nonce that must be stored alongside it. key must be exactly 32 bytes. This protects the TOTP secret
// at rest; the key is a KEK from the secrets file, carried with a key_version so it can rotate.
func SealSecret(key, plaintext []byte) (ciphertext, nonce []byte, err error) {
	gcm, err := newGCM(key)
	if err != nil {
		return nil, nil, err
	}
	nonce = make([]byte, gcm.NonceSize())
	if _, err := rand.Read(nonce); err != nil {
		return nil, nil, fmt.Errorf("security: read gcm nonce: %w", err)
	}
	ciphertext = gcm.Seal(nil, nonce, plaintext, nil)
	return ciphertext, nonce, nil
}

// OpenSecret decrypts a ciphertext and nonce produced by SealSecret under key.
func OpenSecret(key, ciphertext, nonce []byte) ([]byte, error) {
	gcm, err := newGCM(key)
	if err != nil {
		return nil, err
	}
	if len(nonce) != gcm.NonceSize() {
		return nil, errors.New("security: wrong gcm nonce size")
	}
	plaintext, err := gcm.Open(nil, nonce, ciphertext, nil)
	if err != nil {
		return nil, fmt.Errorf("security: open secret: %w", err)
	}
	return plaintext, nil
}

func newGCM(key []byte) (cipher.AEAD, error) {
	if len(key) != AESKeySize {
		return nil, fmt.Errorf("security: AES key must be %d bytes, got %d", AESKeySize, len(key))
	}
	block, err := aes.NewCipher(key)
	if err != nil {
		return nil, fmt.Errorf("security: new cipher: %w", err)
	}
	return cipher.NewGCM(block)
}