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

Source identity

Field	Recorded value
Source type	GitHub source
Original record	Janady13/missionmatch / internal/platform/security/pepper.go
Date	Not specified in source
Repository	Janady13/missionmatch
Revision	720d47fae476b0d38477ae4401697d372b1ea2bc
Branch	feature/opportunity-to-outcome
Path or archive member	internal/platform/security/pepper.go
Original SHA-256	5a453ab5003677697fd8393cbcc69d16151374d478700406b325455e0908cf3f
Git blob SHA	ece911ad1534f25beb37183e3407e14ef39d9b81
Reading-copy SHA-256	5a453ab5003677697fd8393cbcc69d16151374d478700406b325455e0908cf3f

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

Recovered source transcript

Download complete source text ↓64 lines · 2.3 KB

package security

import (
	"crypto/hmac"
	"crypto/sha256"
	"errors"
	"fmt"
)

// ErrUnknownPepperVersion is returned when a credential references a pepper version that is not
// configured. It means the pepper key for that version was removed before all credentials written
// with it were rehashed, so verify cannot proceed. Treat it as a configuration error, not a bad
// password.
var ErrUnknownPepperVersion = errors.New("security: unknown pepper version")

// Pepper applies a versioned secret to a password before the KDF runs. The pepper is a server held
// key (loaded from the secrets file, never the database), so a stolen password hash alone cannot be
// cracked offline without also stealing the pepper. Applying it as HMAC SHA 256 keeps the operation
// inside the FIPS validated module.
//
// Versioning is what makes rotation safe: every credential records the pepper version it was written
// with, so a new active key can be introduced while old hashes still verify under their stored
// version and get upgraded on the next successful login.
type Pepper struct {
	active int
	keys   map[int][]byte
}

// NewPepper builds a Pepper from a map of version to key with a designated active version. Each key
// must be non empty and the active version must be present.
func NewPepper(active int, keys map[int][]byte) (*Pepper, error) {
	if len(keys) == 0 {
		return nil, errors.New("security: pepper needs at least one key")
	}
	copied := make(map[int][]byte, len(keys))
	for v, k := range keys {
		if len(k) == 0 {
			return nil, fmt.Errorf("security: pepper version %d has an empty key", v)
		}
		b := make([]byte, len(k))
		copy(b, k)
		copied[v] = b
	}
	if _, ok := copied[active]; !ok {
		return nil, fmt.Errorf("security: active pepper version %d has no key", active)
	}
	return &Pepper{active: active, keys: copied}, nil
}

// ActiveVersion is the version new credentials should be peppered with.
func (p *Pepper) ActiveVersion() int { return p.active }

// Apply returns HMAC SHA 256 of the password keyed by the requested pepper version. The output is a
// fixed 32 byte value that becomes the input to PBKDF2.
func (p *Pepper) Apply(version int, password string) ([]byte, error) {
	key, ok := p.keys[version]
	if !ok {
		return nil, ErrUnknownPepperVersion
	}
	mac := hmac.New(sha256.New, key)
	mac.Write([]byte(password))
	return mac.Sum(nil), nil
}