====== Inventura certifikatov ======

<WRAP round info>
**Kompleksnost:** Nizka \\
**Trajanje:** 1-4 ure (odvisno od velikosti) \\
**Predpogoj:** Dostop do vseh sistemov
</WRAP>

Popoln popis vseh certifikatov kot osnova za migracijo.

----

===== Zakaj inventura? =====

| Razlog | Opis |
|--------|------|
| **Obseg** | Koliko certifikatov je treba migrirati? |
| **Algoritmi** | Kateri algoritmi so v uporabi? |
| **Datumi izteka** | Kdaj lahko certifikate migriramo ob obnovi? |
| **Odvisnosti** | Kateri sistemi so medsebojno povezani? |
| **Tveganja** | Kje so kritični certifikati? |

----

===== Viri inventure =====

<mermaid>
flowchart TB
    subgraph LOCAL["LOKALNO"]
        L1[Datotečni sistem]
        L2[Shrambe certifikatov]
        L3[Konfiguracijske datoteke]
    end

    subgraph NETWORK["OMREŽJE"]
        N1[TLS končne točke]
        N2[LDAP/AD]
        N3[HSM]
    end

    subgraph MGMT["UPRAVLJANJE"]
        M1[CA baza podatkov]
        M2[CMDB]
        M3[Nadzor]
    end

    subgraph OUTPUT["IZHOD"]
        O[Inventura-CSV]
    end

    L1 & L2 & L3 --> O
    N1 & N2 & N3 --> O
    M1 & M2 & M3 --> O
</mermaid>

----

===== Linux: Pregled datotečnega sistema =====

<code bash>
#!/bin/bash
# cert-inventory-linux.sh

OUTPUT="inventory-linux-$(hostname)-$(date +%Y%m%d).csv"
echo "Pot,Subject,Issuer,Algoritem,Dolzina_kljuca,Veljavno_od,Veljavno_do,Dni_preostalo,Serial,SAN" > "$OUTPUT"

# Standardni imeniki
CERT_DIRS=(
    "/etc/ssl/certs"
    "/etc/pki/tls/certs"
    "/etc/nginx/ssl"
    "/etc/apache2/ssl"
    "/opt/*/ssl"
    "/var/lib/docker/volumes/*/ssl"
)

for dir in "${CERT_DIRS[@]}"; do
    for cert in $(find $dir -name "*.pem" -o -name "*.crt" -o -name "*.cer" 2>/dev/null); do
        # Samo certifikati (ne ključi/CSR)
        openssl x509 -in "$cert" -noout 2>/dev/null || continue

        subject=$(openssl x509 -in "$cert" -subject -noout | sed 's/subject=//' | tr ',' ';')
        issuer=$(openssl x509 -in "$cert" -issuer -noout | sed 's/issuer=//' | tr ',' ';')
        algo=$(openssl x509 -in "$cert" -text -noout | grep "Signature Algorithm" | head -1 | awk '{print $3}')
        keysize=$(openssl x509 -in "$cert" -text -noout | grep "Public-Key:" | grep -oP '\d+')
        not_before=$(openssl x509 -in "$cert" -startdate -noout | cut -d= -f2)
        not_after=$(openssl x509 -in "$cert" -enddate -noout | cut -d= -f2)
        days_left=$(( ($(date -d "$not_after" +%s) - $(date +%s)) / 86400 ))
        serial=$(openssl x509 -in "$cert" -serial -noout | cut -d= -f2)
        sans=$(openssl x509 -in "$cert" -text -noout | grep -A1 "Subject Alternative Name" | tail -1 | tr ',' ';')

        echo "\"$cert\",\"$subject\",\"$issuer\",\"$algo\",\"$keysize\",\"$not_before\",\"$not_after\",\"$days_left\",\"$serial\",\"$sans\"" >> "$OUTPUT"
    done
done

echo "Inventura končana: $OUTPUT"
echo "Najdenih certifikatov: $(tail -n +2 "$OUTPUT" | wc -l)"
</code>

----

===== Windows: Pregled shrambe certifikatov =====

<code powershell>
# Cert-Inventory-Windows.ps1

param(
    [string]$OutputPath = "inventory-windows-$env:COMPUTERNAME-$(Get-Date -Format 'yyyyMMdd').csv"
)

$results = @()

# Pregled vseh shrambenih mest certifikatov
$stores = @(
    @{ Location = "LocalMachine"; Name = "My" },
    @{ Location = "LocalMachine"; Name = "Root" },
    @{ Location = "LocalMachine"; Name = "CA" },
    @{ Location = "LocalMachine"; Name = "WebHosting" },
    @{ Location = "CurrentUser"; Name = "My" }
)

foreach ($store in $stores) {
    $storePath = "Cert:\$($store.Location)\$($store.Name)"

    Get-ChildItem $storePath -ErrorAction SilentlyContinue | ForEach-Object {
        $cert = $_
        $daysLeft = ($cert.NotAfter - (Get-Date)).Days

        # Ekstrakcija SAN
        $sanExt = $cert.Extensions | Where-Object { $_.Oid.Value -eq "2.5.29.17" }
        $sans = if ($sanExt) { $sanExt.Format($false) } else { "" }

        $results += [PSCustomObject]@{
            Store = "$($store.Location)\$($store.Name)"
            Subject = $cert.Subject
            Issuer = $cert.Issuer
            Algorithm = $cert.SignatureAlgorithm.FriendlyName
            KeySize = $cert.PublicKey.Key.KeySize
            NotBefore = $cert.NotBefore
            NotAfter = $cert.NotAfter
            DaysLeft = $daysLeft
            Serial = $cert.SerialNumber
            Thumbprint = $cert.Thumbprint
            SANs = $sans
            HasPrivateKey = $cert.HasPrivateKey
        }
    }
}

$results | Export-Csv -Path $OutputPath -NoTypeInformation -Encoding UTF8
Write-Host "Inventura končana: $OutputPath"
Write-Host "Najdenih certifikatov: $($results.Count)"
</code>

----

===== Omrežje: Pregled TLS končnih točk =====

<code bash>
#!/bin/bash
# cert-inventory-network.sh

OUTPUT="inventory-network-$(date +%Y%m%d).csv"
ENDPOINTS_FILE="endpoints.txt"

echo "Koncna_tocka,Subject,Issuer,Algoritem,Dolzina_kljuca,Veljavno_do,Dni,Serial" > "$OUTPUT"

# Končne točke iz datoteke ali CMDB/DNS
# Format: hostname:port
cat "$ENDPOINTS_FILE" | while read endpoint; do
    host=${endpoint%:*}
    port=${endpoint#*:}
    [ -z "$port" ] && port=443

    echo "Preglejujem $host:$port..."

    cert_info=$(echo | openssl s_client -connect "$host:$port" -servername "$host" 2>/dev/null | openssl x509 -text -noout 2>/dev/null)

    if [ -n "$cert_info" ]; then
        subject=$(echo "$cert_info" | grep "Subject:" | head -1 | sed 's/.*Subject: //' | tr ',' ';')
        issuer=$(echo "$cert_info" | grep "Issuer:" | head -1 | sed 's/.*Issuer: //' | tr ',' ';')
        algo=$(echo "$cert_info" | grep "Signature Algorithm" | head -1 | awk '{print $3}')
        keysize=$(echo "$cert_info" | grep "Public-Key:" | grep -oP '\d+')
        not_after=$(echo | openssl s_client -connect "$host:$port" -servername "$host" 2>/dev/null | openssl x509 -enddate -noout | cut -d= -f2)
        days_left=$(( ($(date -d "$not_after" +%s) - $(date +%s)) / 86400 ))
        serial=$(echo | openssl s_client -connect "$host:$port" -servername "$host" 2>/dev/null | openssl x509 -serial -noout | cut -d= -f2)

        echo "\"$endpoint\",\"$subject\",\"$issuer\",\"$algo\",\"$keysize\",\"$not_after\",\"$days_left\",\"$serial\"" >> "$OUTPUT"
    else
        echo "\"$endpoint\",\"POVEZAVA NEUSPEŠNA\",\"\",\"\",\"\",\"\",\"\",\"\"" >> "$OUTPUT"
    fi
done

echo "Omrežna inventura končana: $OUTPUT"
</code>

----

===== Inventura CA baze podatkov =====

<code bash>
#!/bin/bash
# cert-inventory-ca.sh - Iz OpenSSL CA indeksa

CA_INDEX="/etc/pki/CA/index.txt"
OUTPUT="inventory-ca-$(date +%Y%m%d).csv"

echo "Status,Serial,Iztece,Subject,Datoteka" > "$OUTPUT"

while IFS=$'\t' read -r status expiry revoke serial unknown subject; do
    # Status: V=Veljaven, R=Preklican, E=Potekel
    status_text=""
    case "$status" in
        V) status_text="Veljaven" ;;
        R) status_text="Preklican" ;;
        E) status_text="Potekel" ;;
    esac

    # Pretvorba datuma izteka (format YYMMDDHHMMSSZ)
    expiry_formatted=$(date -d "20${expiry:0:2}-${expiry:2:2}-${expiry:4:2}" +%Y-%m-%d 2>/dev/null)

    # Datoteka certifikata
    cert_file="/etc/pki/CA/newcerts/${serial}.pem"

    echo "\"$status_text\",\"$serial\",\"$expiry_formatted\",\"$subject\",\"$cert_file\"" >> "$OUTPUT"
done < "$CA_INDEX"

echo "CA inventura končana: $OUTPUT"
echo "Certifikati:"
echo "  Veljavni:   $(grep -c "^\"Veljaven\"" "$OUTPUT")"
echo "  Preklicani: $(grep -c "^\"Preklican\"" "$OUTPUT")"
echo "  Potekli:    $(grep -c "^\"Potekel\"" "$OUTPUT")"
</code>

----

===== Analiza in poročanje =====

<code python>
#!/usr/bin/env python3
# analyze-inventory.py

import pandas as pd
from datetime import datetime

# Nalaganje vseh inventurnih datotek
df = pd.concat([
    pd.read_csv('inventory-linux*.csv'),
    pd.read_csv('inventory-windows*.csv'),
    pd.read_csv('inventory-network*.csv')
])

# Analiza
print("=== Povzetek inventure ===\n")

print(f"Skupno število certifikatov: {len(df)}")

print("\n--- Po algoritmu ---")
print(df['Algoritem'].value_counts())

print("\n--- Po dolžini ključa ---")
print(df['Dolzina_kljuca'].value_counts())

print("\n--- Analiza izteka ---")
df['Dni_preostalo'] = pd.to_numeric(df['Dni_preostalo'], errors='coerce')
print(f"Potekli:          {len(df[df['Dni_preostalo'] < 0])}")
print(f"< 30 dni:         {len(df[(df['Dni_preostalo'] >= 0) & (df['Dni_preostalo'] < 30)])}")
print(f"30-90 dni:        {len(df[(df['Dni_preostalo'] >= 30) & (df['Dni_preostalo'] < 90)])}")
print(f"90-365 dni:       {len(df[(df['Dni_preostalo'] >= 90) & (df['Dni_preostalo'] < 365)])}")
print(f"> 1 leto:         {len(df[df['Dni_preostalo'] >= 365])}")

print("\n--- Potencial migracije ---")
rsa = len(df[df['Algoritem'].str.contains('rsa', case=False, na=False)])
ecdsa = len(df[df['Algoritem'].str.contains('ecdsa|ec', case=False, na=False)])
hybrid = len(df[df['Algoritem'].str.contains('ml-dsa|hybrid', case=False, na=False)])
print(f"RSA (za migracijo):     {rsa}")
print(f"ECDSA (za migracijo):   {ecdsa}")
print(f"Hibridno (že):          {hybrid}")

# Izvoz za načrtovanje migracije
df.to_excel('inventory-complete.xlsx', index=False)
print("\nPolna inventura izvožena: inventory-complete.xlsx")
</code>

----

===== Predloga nadzorne plošče =====

| Kategorija | Število | Migracija |
|------------|---------|-----------|
| **Algoritem** | | |
| RSA-2048 | 150 | → Hibridno |
| RSA-4096 | 30 | → Hibridno |
| ECDSA P-256 | 80 | → Hibridno |
| ECDSA P-384 | 20 | → Hibridno |
| ML-DSA/Hibridno | 5 | Končano |
| **Iztece** | | |
| < 30 dni | 12 | Takoj migrirati |
| 30-90 dni | 25 | Faza 1 |
| 90-365 dni | 100 | Faza 2 |
| > 1 leto | 148 | Faza 3 |
| **Kritičnost** | | |
| Zunanji | 40 | Prioriteta 1 |
| Notranji kritični | 80 | Prioriteta 2 |
| Razvoj | 165 | Prioriteta 3 |

----

===== Kontrolni seznam =====

| # | Kontrolna točka | |
|---|-----------------|---|
| 1 | Vsi Linux strežniki pregledani | |
| 2 | Vsi Windows strežniki pregledani | |
| 3 | Vse TLS končne točke pregledane | |
| 4 | CA baza podatkov izvožena | |
| 5 | Podatki konsolidirani | |
| 6 | Analiza izvedena | |
| 7 | Načrt migracije ustvarjen | |

----

===== Povezana dokumentacija =====

  * [[.:classic-to-hybrid|Klasično → Hibridno]] – Začetek migracije
  * [[..:monitoring:ablauf-monitoring|Nadzor veljavnosti]] – Tekoče spremljanje
  * [[sl:int:pqcrypt:business:start|Poslovno]] – Strateško načrtovanje

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<< [[.:rollback-strategie|← Strategija povrnitve]] | [[..:start|→ Scenariji za operaterje]] >>

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//Wolfgang van der Stille @ EMSR DATA d.o.o. - Post-Quantum Cryptography Professional//

{{tag>inventur bestandsaufnahme migration analyse operator}}